please tell me how to do this change in theme

I want to increase the area allocated for posts.
as you can see in image.

i am using WP-Genius Theme

 

Alter the CSS file.

Increase the size of the container and decrease the size of the sidebar.

 

The code of my style.css is

/* -------------------[ Main Page Elements ]------------------- */

body {
	background: #0066cc url(images/bodybg.gif) top left repeat-x;
	text-align: left;
	margin: 0;
	padding: 0;
	line-height: 1.4em;
	color:#333;
	font-family:arial,helvetica,sans-serif;
	font-size:9pt;
	}

#wrap {
	clear: both;
	margin: 0 auto;
	padding:0;
	width:980px;
	}

#header {
	padding:0;
	margin: 0 auto;
	position:relative;
	padding: 0;
	z-index:9999;
	}

#head-content {
	width:980px;
	margin: 0 auto;
	background:url(images/logo.gif) 0 0 no-repeat;
	height:119px;
	padding: 0;
	}

#sitetitle {
	width:480px;
	float:left;
	margin:0;
	padding:0;
	}

#sitetitle h1, #sitetitle .title {
	font-size: 30px;
	padding:0;
	margin:30px 0 0;
	text-align:left;
	line-height: 1.2em;
	letter-spacing:-1px;
	color:#000;
	}

#sitetitle .description {
	font-size: 9pt;
	padding: 0;
	margin:0;
	text-align:left;
	color:#fff;
	}

#head-banner468 {
	float:right;
	width:468px;
	height:60px;
	margin-top:30px;
	overflow:hidden;
	}


#subhead {
	height:7px;
	clear: both;
	margin: 0 auto;
	padding: 0;
	width:980px;
	background: #fff url(images/subhead.gif) top left no-repeat;
	}

#page {
	clear: both;
	margin: 0 auto 0;
	padding: 15px 0 15px 15px;
	width:965px;
	background: #fff url(images/pagebg.gif) top left repeat-y;
	border-top:1px solid #fff;
	}

#contentleft {
	width: 630px;
	float:left;
	padding: 0;
	margin: 0;
	overflow:hidden;
	} 

#content {
	width: 630px;
	margin: 0;
	padding: 0;
	}

#contentright {
	width: 320px;
	padding: 0;	
	float:right;
	margin:0;
	overflow:hidden;	
	} 

#sidebar {
	width: 320px;
	float:right;
	overflow:hidden;
	}

#footer {
	text-align:center;
	padding:20px 0;
	clear: both;
	margin: 0 auto;
	width:980px;
	overflow:hidden;
	}

#footer .limit {
	padding: 0;
	margin:0 auto;
	width:980px;
	}

.clearfix:after {
	content: "."; 
	display: block; 
	height: 0; 
	clear: both; 
	visibility: hidden;
	}

.clearfix {display: inline-block;}

/* Hides from IE-mac \*/
* html .clearfix {height: 1%;}
.clearfix {display: block;}
/* End hide from IE-mac */

/* -------------------[ Misc Tags and Classes ]------------------- */

p {
	margin-top: 0px;
	margin-bottom: 15px;
	}

ol {
	margin-left: 40px;
	padding: 0;
	}

ul {
	margin-left: 20px;
	padding: 0;
	}

.post ul, .post ol {
	list-style-type: none;
	}

.post ul li {
	list-style-type:none;
	padding: 0;
	margin: 0 0 2px;
	padding-left:16px;
	background:url(images/arrow-simple.gif) 0 3px no-repeat;
	}

.post ul li li {
	padding-left:0;
	background:transparent;
	}

.post ol li {
	list-style-type:decimal;
	margin-left: 0;
	padding-left: 0;
	}

.post ul ul {
	margin-left:0;
	}

form, select {
	margin:0;
	padding:0;
	}

acronym, abbr, span.caps {
	cursor: help;
	}

acronym, abbr {
	border-bottom: 1px solid #999;
	}

* html acronym, abbr {
	border-bottom: 1px dashed #999;
	}

blockquote {
	margin: 0 20px 15px;
	color: #666;
	background:#eee;
	padding: 15px 20px 1px;
	}

.center {
	text-align: center;
	}

a img, img a {
	border: none;
	}

.post {
	clear:both;
	margin: 0 0 15px;
	padding:0 0 1px;
	background: url(images/dot2.gif) bottom left repeat-x;
	}

.singlepost .post {
	margin: 0 0 10px;
	border:0;
	background:transparent;
	padding:20px;
	border:1px solid #ddd;
	}

.singlepost .sitemap .post {
	border:0;
	margin: 0 0 10px;
	padding:0 0 1px;
	background: url(images/dot2.gif) bottom left repeat-x;
	}

.entry {
	margin: 0;
	padding: 0;
	}


.postdate {
	font-size:8pt;
	margin-bottom: 15px;
	}

.singlepost .postdate {
	background:url(images/dot1.gif) bottom left repeat-x;
	padding-bottom:5px;
	margin-bottom:15px;
	}

code {
	font: 1.1em 'Courier New', Courier, Fixed;
	}

hr {
        display: block;
        clear:both;
        }

.navigation {
	margin: 0;
	padding: 10px 0 0;
	font-weight:bold;
	clear:both;
	}

.alignright {
	float: right;
	}
	
.alignleft {
	float: left;
	}

.aligncenter, div.aligncenter {
	display: block;
	margin-left: auto;
	margin-right: auto;
        float: none; 
        clear: both;
	}

.banner468 {
	text-align:center;
	margin: 0 auto 10px;
	padding:5px 0px;
	border:1px solid #ddd;
	background:#eee;
	float:none;
	display:block;
	}

.tags {
	margin: 0;
	padding: 0;
	}

.cats {
	margin: 0;
	padding: 0;
	}

input:focus {
	outline: none;
	}

p#breadcrumbs {
	padding: 0 0 5px;
	background: url(images/dot1.gif) bottom left repeat-x;
	font-size:8pt;
	margin: 0 0 5px;
	font-family:arial,helvetica,sans-serif;
	color:#666;
	}

.archive-border {
	padding:20px;
	margin:0 0 10px;
	border:1px solid #ddd;
	}

/* ---------------[ Tables ]--------------- */

table {
	margin-bottom:15px;
	}

tr, td, th {
	margin:auto; 
	}

td, th {
	padding:5px;
	vertical-align:top;
	}

th {
	font-weight:bold;
	background:#ddd;
	}

td {
	border:1px solid #ddd;
	}

/* -------------------[ Author Bio Info ]------------------- */

.auth-bio {
	padding: 15px;
	margin: 0 0 15px;
	background:#eee;
	border:1px solid #ddd;
	}

.singlepost .auth-bio {
	margin: 0 0 10px;
	}

.auth-bio img.avatar {
	padding:1px;
	background:#fff;
	border:1px solid #ddd;
	float:right;
	margin:0 0 0 10px;
	}

.auth-bio p {
	margin:0;
	}

/* -------------------[ Comments ]------------------- */

.allcomments {
	padding: 10px 0 0;
	margin:0;
	}

.commentlist {
	padding: 0;
	list-style-type:none;
	margin: 0 ;
	}
	
.commentlist li {
	background: #eee;
	clear:both;
	margin: 15px 0 0;
	padding: 15px;
	border:1px solid #ddd;
	list-style-type:none;
	}

.commentlist li ul.children li {
	background: #fff;
	}

.commentlist li ul.children {
	margin: 0;
	padding: 0;
	}

.commentlist li.alt { }

.commentmetadata {
	display: block;
	margin-bottom:10px;
	font-size: 8pt;
	}

.commentlist cite {
	font-style:normal;
	font-weight:bold;
	}

#commentform {
	padding: 0;
	margin: 0;
	}

#commentform input#author,
#commentform input#email,
#commentform input#url,
#commentform textarea {
	padding:10px;
	border:1px solid #ddd;
	background:#fff;
	}

#commentform input#submit {
	cursor:pointer;
	}

#commentform textarea {
	width:80%;
	}

.thread-alt { }	

.thread-even { }

#respond { 
	margin: 10px 0 0;
	padding:15px;
	background:#eee;
	border:1px solid #ddd;
	clear:both; 
	}

.commentlist #respond { 
	clear:both; 
	padding-top:10px; 
	}

.comments-navigation {
	display:block;
	margin: 0;
	padding:5px 0;
	font-weight:bold;
	}

.comments-navigation .alignleft {
	float:left;
	}

.comments-navigation .alignright {
	float:right;
	}

.comments-number {
	font-size:8pt;
	font-weight:bold;
	margin-bottom:0;
	padding:0 0 5px;
	}

.commentlist img.avatar, 
.commentlist img.comment-grav {
	padding:2px;
	background:#fff;
	border:1px solid #ddd;
	float:right;
	margin:0 0 10px 10px;
	}

.reply {
	padding: 0 0 5px;
	}

a.comment-reply-link, 
a.comment-reply-link:link, 
a.comment-reply-link:visited, 
.reply a, 
.reply a:link, 
.reply a:visited {
	clear:both;
	background:#ddd;
	padding: 5px 10px;
	font-weight:bold;
	font-size:8pt;
	text-transform:lowercase;
	color:#000;
	}

a.comment-reply-link:hover, 
a.comment-reply-link:active, 
.reply a:hover, 
.reply a:active {
	background:#000;
	color:#fff !important;
	border:1px solid #000;
	}

.comment-body ul {
	list-style-type:disc;
	margin:0 30px 15px;
	padding:0;
	border:none;
	}

.comment-body ul li {
	list-style-type:disc;
	margin:0;
	padding:0;
	border:none;
	}

.cancel-comment-reply {
	padding: 5px 0 10px;
	}

/* -------------------[ Sidebar ]------------------- */

#sidebar ul {
	list-style-type: none;
	margin: 0;
	padding: 0;
	}

#sidebar ul ul {
	margin: 0;
	padding: 10px;
	}

#sidebar ul ul ul {
	margin: 0;
	padding: 0;
	}

#sidebar ul ul ul ul {
	margin: 0;
	padding: 0;
	}

#sidebar li {
	list-style-type: none;
	margin: 0;
	padding:0;
	border-bottom:1px solid #ddd;
	}

#sidebar li li {
	margin: 0 0 5px;
	padding:0 0 0 16px;
	background:url(images/arrow-simple.gif) 0 3px no-repeat;
	border-bottom:0;
	}

#sidebar li li li {
	margin: 0;
	padding:0;
	border:0;
	background:transparent;
	}

#sidebar li li li:hover {
	}

#sidebar li li li li {
	margin: 0 0 0 15px;
	padding:0;
	background:transparent;
	}

#sidebar .textwidget {
	padding: 10px;
	}

#sidebar li#tag-cloud ul { }

#sidebar li.widget_tag_cloud div { 
	padding:10px; 
	line-height:2em; 
	}

#sidebar li#tag-cloud ul.wp-tag-cloud { 
	padding:10px; 
	line-height:2em; 
	}

#sidebar li#tag-cloud li {
	border:0;
	float:none;
	display:inline;
	padding: 0;
	margin: 0;
	background:transparent;
	background-image: none;
	}

#sidebar li#tag-cloud li a {
	padding:0;
	background:transparent;
	background-image: none;
	}

#sidebar li select {
	width:160px;
	margin: 0;
	}

#sidebar li li.recentcomments {
	margin: 0 0 10px;
	padding-left: 20px;
	background:url(images/comments.gif) 0 1px no-repeat;
	}

#sidebar .widget_flickrRSS img {
	margin: 0 5px 5px 0;
	background: #ddd;
	padding: 3px;
	width:75px;
	height:75px;
	}

#sidebar #calendar_wrap, #sidebar #akismetwrap {
	padding:10px;
	margin:0;
	}

#sidebar li#sidebar-banner300 {
	padding: 0 10px 10px;
	margin: 0 0 10px;
	}

/* ---------------[ Site Map Page ]--------------- */

.post .sitemap ul {
	margin-top: 0;
	margin-left: 0;
	}

.post .sitemap ul ul {
	margin-left: 0;
	}

.post .sitemap ul ul ul {
	margin-left: 15px;
	}

.sitemap img.post-thum, .sitemap img.thumbnail {
	float:right;
	margin: 0 0 10px 10px;
	width:75px;
	height:75px;
	}

p.site-map {
	margin: 0;
	font-weight:bold;
	font-size:10pt;
	}

.map-narrow {
	width:30%;
	float:right;
	border:1px solid #ddd;
	background:#eee;
	padding: 10px;
	}

.map-wide {
	width:60%;
	float:left;
	}

/* ---------------[ Related Posts on Single Post Page ]--------------- */

#related {
	background:#eee url(images/dot.gif) 45% 0 repeat-y;
	border:1px solid #ddd;
	padding:15px;
	margin: 0 0 10px;
	}

#related .related-posts {
	font-weight:bold;
	width: 53%;
	float:right;
	}

#related .related-posts p {
	margin:0;
	}

#related .related-posts h3, #related .related-posts h2, #related .related-posts h1 {
	margin:0;
	font-size:12pt;
	letter-spacing:0;
	}

#related .related-posts ol {
	font-weight:normal;
	margin:2px 0 0 25px;
	}

#related .subscribe {
	width: 43%;
	float:left;
	}

#related .subscribe p.intro {
	font-weight:bold;
	}

#related .subscribe p.feed {
	margin-bottom:10px;
	font-weight:bold;
	padding-left: 21px;
	background: url(images/FeedIcon-16.gif) 0px 50% no-repeat;
	}

#related .subscribe form {
	margin:0;
	padding:0;
	}

/* -------------------[ Top Navigation ]------------------- */

#topnav {
	background: #1a1a1a url(images/topnavbg.gif) top left no-repeat;
	margin:0 auto;
	padding:0 15px;
	width:950px;
	position:relative;
	z-index:9999;
	border-bottom:1px solid #000;
	}

#topnav ul {
	width:740px;
	list-style: none;
	padding: 0;
	margin: 0;
	}

#topnav li {
	margin: 0;
	padding:0;
	float: left;
	height:60px;
	line-height:60px;
	}

#topnav li li {
	padding:0;
	margin: 0;
	height:30px;
	line-height:30px;
	}

#topnav li a, #topnav li a:link, #topnav li a:visited {
	color: #fff;
	text-decoration: none;
	display: block;
	text-decoration: none;
	padding: 0px 10px;
	}

#topnav li a:hover, #topnav li a:active {
	color: #eee;
	}

#topnav li.current_page_item {
	padding-right:10px;
	background:url(images/nav-rt.gif) top right no-repeat;
	}

#topnav li.current_page_item a, 
#topnav li.current_page_item a:link, 
#topnav li.current_page_item a:visited {
	background:url(images/nav-left.gif) top left no-repeat;
	padding-right: 0;
	}

#topnav li li.current_page_item {
	padding-right:0;
	background:transparent;
	}

#topnav li li.current_page_item a, 
#topnav li li.current_page_item a:link, 
#topnav li li.current_page_item a:visited {
	background:transparent;
	padding: 0px 10px;
	}

#topnav li ul {
	float:none;
	z-index:9999;
	position: absolute;
	left: -999em;
	height: auto;
	width: 200px;
	margin: 0;
	padding:0;
	background:#ccc;
	border:1px solid #000;
	}

#topnav li.current_page_item ul {

	}

#topnav li li.current_page_item ul {

	}

#topnav li.current_page_item li {
	background-image:none;
	padding:0;
	margin: 0;
	}

#topnav li ul a, 
#topnav li ul a:link, 
#topnav li ul a:visited,
#topnav li.current_page_item ul a, 
#topnav li.current_page_item ul a:link, 
#topnav li.current_page_item ul a:visited {
	background-image:none;
	padding: 0px 10px;
	width:180px;
	background:transparent;
	color:#000;
	}

#topnav li ul a:hover, 
#topnav li ul a:active,
#topnav li.current_page_item ul a:hover, 
#topnav li.current_page_item ul a:active  { 
	background:#333;
	color:#fff;
	}

#topnav li ul ul, #topnav li.current_page_item ul ul  {
	border-top:0;
	margin: -30px 0 0 200px;
	}

#topnav li:hover ul ul, #topnav li:hover ul ul ul, #topnav li.sfhover ul ul, #topnav li.sfhover ul ul ul {
	left: -999em;
	}

#topnav li:hover ul, #topnav li li:hover ul, #topnav li li li:hover ul, #topnav li.sfhover ul, #topnav li li.sfhover ul, #topnav li li li.sfhover ul {
	left: auto;
	}

#topnav li:hover, #topnav li.sfhover { width:auto;
	}

/* -------------------[ Searchform ]------------------- */

#topnav #topsearch {
	position: absolute;
	top: 0;
	right:15px;
	width:200px;
	height:60px;
	background:url(images/searchbg.gif) top left no-repeat;
	}

#topnav #searchform {
	padding:0;
	margin:0;
	}

#topnav #searchform #searchfield {
	font-size:9pt;
	float:left;
	padding:0;
	width:150px;
	margin: 23px 0 0 25px;
	border:0;
	background:transparent;
	color:#888;
	line-height:1.1em;
	}

#topnav #searchform #submitbutton {
	margin: 15px 0 0;
	float:right;
	font-size:8pt;
	width:20px;
	height:30px;
	text-align:center;
	border:0;
	background: transparent;
	}

/* -----------[ Bottom Categories ]----------- */

#bottom-cats {
	margin: 0 auto;
	padding: 5px;
	overflow:hidden;
	border-top:1px solid #ddd;
	background:#fff;
	}

#bottom-cats ul {
	list-style-type:none;
	width:960px;
	margin: 0 auto;
	padding: 5px;
	overflow:hidden;
	background:#000; 
	}

#bottom-cats li {
	padding:3px;
	margin: 0;
	float:left;
	list-style-type:none;
	display:inline; 
	}
#bottom-cats a, #bottom-cats a:link, #bottom-cats a:visited {
	background:#111;
	display:block;
	float:left;
	padding:5px;
	width:174px;
	border:1px solid #222;
	overflow:hidden;
	font-size:9pt;
	color:#aaa;
	}

#bottom-cats a:hover, #bottom-cats a:active {
	color:#fff;
	background:#000;
	}

/* -------------------[ Side Tabs ]------------------- */

#sidebar li#side-tabs {
	padding: 10px;
	margin:0;
	}

#sidebar #side-tabs ul, #side-tabs ul {
	margin: 0;
	padding: 0;
	background:transparent;
	border:0;
	}

#side-tabs ul.tabs {  
	list-style-type:none;
	margin: 0;
	padding: 0;
	clear:both;
	}

#side-tabs ul.tabs li {
	border:0;
	background:transparent;
	float: left;
	display: inline;
	margin: 0;
	padding: 0;
	} 

#side-tabs ul.tabs li a, 
#side-tabs ul.tabs li a:link, 
#side-tabs ul.tabs li a:visited {
	float: left;
	display: block;
	padding: 5px 8px;
	color:#666;
	font-size:8pt;
	font-weight:bold;
	} 

#side-tabs ul.tabs li a:hover, 
#side-tabs ul.tabs li a:active {
	color:#000;
	}  

#side-tabs ul.tabs li a.on {
	background:#ccc;
	color:#000;
	}

#side-tabs .cat_content {
	border:1px solid #ccc;
	padding: 0;
	background:#ddd;
	margin: 0 !important;
	}

#side-tabs select {
	margin: 10px !important;
	}

#side-tabs .cat_content li {
	margin: 0 !important;
	padding:10px !important;
	background:transparent !important;
	border-bottom: 1px solid #ccc !important;
	}

/* ---------[ Sidebar Subscribe ]--------- */

#sidebar li#sidebar-subscribe {
	padding: 0 10px 10px;
	}

a#rss-sub, a#rss-sub:link, a#rss-sub:visited {
	height:37px;
	width:250px;
	background: url(images/rss-sub.gif) top left no-repeat;
	display:block;
	padding:0;
	margin: 0;
	}
a#rss-sub:hover, a#rss-sub:active {
	background: url(images/rss-sub.gif) bottom left no-repeat;
	}

.email-sub {
	}

.email-sub form {
	padding: 47px 0 0 0;
	margin:10px 0 0;
	background: url(images/email-sub.gif) top left no-repeat;
	}

.email-sub input#sub {
	padding: 5px 5px 0;
	background: #fff;
	border:1px solid #ccc;
	width:160px;
	color:#999;
	height:21px;
	font-size: 10pt;
	float:left;
	clear:left;
	margin:0 5px 0 0;
	}

.email-sub input#subbutton {
	padding: 0;
	background: transparent url(images/submit.gif) top left no-repeat;;
	border:0;
	height:28px;
	width:60px;
	cursor:pointer;
	float:left;
	clear:right;
	margin:0;
	}

.email-sub input#subbutton:hover {
	background: transparent url(images/submit.gif) bottom left no-repeat;;
	}

a#twitter-sub, a#twitter-sub:link, a#twitter-sub:visited {
	height:89px;
	width:250px;
	background: url(images/twitter-sub.gif) top left no-repeat;
	display:block;
	padding:0;
	margin: 15px 0 0;
	}
a#twitter-sub:hover, a#twitter-sub:active {
	background: url(images/twitter-sub.gif) bottom left no-repeat;
	}

.other-sub {
	padding: 0;
	background:#ddd;
	border:1px solid #ccc;
	border-bottom:0;
	margin: 15px 0 0;
	}

.facebook-sub {
	height:36px;
	line-height:36px;
	margin: 0;
	padding: 0 10px 0 35px;
	background: url(images/facebook.png) 10px 50% no-repeat;
	border-bottom:1px solid #ccc;
	}

.linkedin-sub {
	height:36px;
	line-height:36px;
	margin: 0;
	padding: 0 10px 0 35px;
	background: url(images/linkedin.png) 10px 50% no-repeat;
	border-bottom:1px solid #ccc;
	}

.flickr-sub {
	height:36px;
	line-height:36px;
	margin: 0;
	padding: 0 10px 0 35px;
	background: url(images/flickr.png) 10px 50% no-repeat;
	border-bottom:1px solid #ccc;
	}

/* ---------[ Slideshow ]--------- */

#home-top {
	width:950px;
	background:#fff;
	margin:0 auto;
	padding:15px 15px 5px;
	overflow:hidden;
	border-bottom:1px solid #ddd;
	}

#slideshow {
	width: 940px;
	margin: 0 0 10px;
	padding:0;
	background:#000;
	height:250px;
	overflow:hidden;
	border:5px solid #000;
	}

#slideshow ul {
	background:transparent;
	margin: 0;
	padding: 0;
	list-style-type: none;
	}           

/* ---------[ Slideshow Slides ]--------- */

#slideshow .slides {
	width:540px;
	overflow: hidden;
	float:left;
	color:#fff;
	}

#slideshow .slides ul {
	float:left;
	overflow: hidden;
	width:540px;
	height:250px;
	}

#slideshow .slides li {
	display:none;
	left:-99999em;
	width:540px;
	height:250px;
	display:block;
	overflow: hidden;
	background:#000;
	position:relative;
	z-index:1;
	}

.js #slideshow .slides li {
	margin: 0;
	padding: 0;
	list-style-type: none;
	width:540px;
	height:250px;
	display:block;
	overflow: hidden;
	background:#000;
	position:relative;
	z-index:1;
	}

.js #slideshow .slides li .entry {
	width:530px;
	padding: 5px;
	overflow: hidden;
	position:absolute;
	bottom:0;
	left:0;
	background:#000;
	filter:alpha(opacity=70);
	-moz-opacity:0.7;
	-khtml-opacity: 0.7;
	opacity: 0.7;
	}

#slideshow .slides li .entry p {
	margin: 0;
	}

#slideshow .slides li .entry h2 a, 
#slideshow .slides li .entry h2 a:link,
#slideshow .slides li .entry h2 a:visited,
#slideshow .slides li .entry h2 a:hover,
#slideshow .slides li .entry h2 a:active  {
	font-size:12pt;
	line-height: 1.1em;
	margin:0;
	color:#fff !important;
	margin: 0;
	letter-spacing:0;
	}

/* ---------[ Slideshow Navigation ]--------- */

#slideshow  ul.slides-nav {
	height:250px;
	width:395px;
	margin:0;
	padding: 0;
	float:right;
	overflow:hidden;
	}

#slideshow .slides-nav li {
	display:block;
	margin:0;
	padding:0;
	list-style-type:none;
	display:block;
	}

#slideshow .slides-nav li a {
	width:375px;
	font-family:arial,helvetica,sans-serif;
	display:block;
	margin:0;
	padding:10px;
	list-style-type:none;
	display:block;
	height:30px;
	color:#999;
	font-size:8pt;
	overflow:hidden;
	background: #1A1A1A;
	line-height:1.35em;
	}

.js #slideshow .slides-nav li.on a {
	background: #292929 url(images/featbg.gif) top left no-repeat;
	color:#fff;
	}

.js #slideshow .slides-nav li a:hover,
.js #slideshow .slides-nav li a:active {
	color:#fff;
	}

#slideshow .slides-nav li a img.post-thum, 
#slideshow .slides-nav li a img.thumbnail {
	float:left;
	margin: 0 10px 0 0;
	border:0;
	padding:1px;
	background:#999;
	width:28px;
	height:28px;
	}

.js #slideshow .slides-nav li.on a img.post-thum, 
.js #slideshow .slides-nav li.on a img.thumbnail {
	background:#fff !important;
	}

/* ---------[ More Features ]--------- */

#more-feat {
	width:950px;
	background:#fff;
	margin:0 auto;
	padding:0;
	overflow:hidden;
	}

#more-feat .post {
	border:1px solid #ddd;
	font-size:8pt;
	width:228px;
	background:#eee;
	margin:0 10px 10px 0;
	padding:0;
	overflow:hidden;
	float:left;
	display:inline;
	clear:none;
	}

#more-feat .right .post {
	margin:0;
	float:right;
	}

#more-feat .post .entry {
	line-height: 1.3em;
	margin:0;
	padding:8px;
	height:105px;
	overflow:hidden;
	}

#more-feat .post .entry-bottom {
	margin:5px 0 0;
	padding:5px 8px;
	border-top:1px solid #ddd;
	background:#e5e5e5;
	}

#more-feat h2 {
	font-size: 10pt;
	letter-spacing:0;
	margin:0;
	}

#more-feat img.thumbnail {
	float:right;
	margin: 0 0 5px 5px;
	padding:1px;
	background:#fff;
	width:70px;
	height:70px;
	border:1px solid #ccc;
	}

/* -------------------[ Magazine Home Page Styles ]------------------- */

ul.home-left {
	width:49%;
	padding:0;
	float:left;
	margin:0 0 15px;
	list-style-type:none;
	}

ul.home-right {
	width:49%;
	padding:0;
	float:right;
	margin:0 0 15px;
	list-style-type:none;
	}

ul.home-bottom {
	clear:both;
	width:100%;
	padding:0;
	margin:0;
	list-style-type:none;
	}

ul.home-left li, 
ul.home-right li, 
ul.home-bottom li {
	margin:0;
	padding:0;
	}

ul.home-right li.homepost, 
ul.home-left li.homepost, 
ul.home-bottom li.homepost {
	font-size:9pt;
	margin:0;
	padding:0;
	list-style-type:none;
	border:1px solid #ddd;
	border-top:0;
	}

ul.home-right li.homepost .entry, 
ul.home-left li.homepost .entry, 
ul.home-bottom li.homepost .entry {
	padding: 10px 10px 0;
	}

ul.home-right li.title, 
ul.home-left li.title, 
ul.home-bottom li.title {
	margin:0;
	padding:0 10px;
	list-style-type:none;
	border:1px solid #ddd;
	background:#e5e5e5;
	clear:both;
	}

ul.home-right .bottom,
ul.home-left .bottom,
ul.home-bottom .bottom {
	clear:both;
	font-size: 8pt;
	padding: 5px 10px;
	background:#eee;
	border-top:1px solid #e5e5e5;
	margin: 10px 0 0;
	}

ul.home-right li.title h2.feat-title,
ul.home-left li.title h2.feat-title,
ul.home-bottom li.title h2.feat-title {
	letter-spacing:0px;
	font-size: 10pt;
	padding:5px 0;
	margin: 0;
	float:left;
	width:74%;
	}

ul.home-bottom li.title h2.feat-title {
	padding: 8px 0 0;
	}

ul.home-right  li.title .moreposts,
ul.home-left  li.title .moreposts,
ul.home-bottom  li.title .moreposts {
	text-align:right;
	float:right;
	width:24%;
	font-size:9pt;
	font-weight:bold;
	padding:5px 0;
	margin:0;
	}

li.homepost img.post-thum, 
li.homepost img.thumbnail {
	width:70px;
	height:70px;
	float:right;
	margin: 0 0 10px 10px;
	}

li.homepost h3 {
	padding:0;
	margin: 0;
	letter-spacing:0px;
	font-size:9pt;
	line-height:1.3em;
	}

li.homepost p {
	margin-bottom:0;
	}

Code (markup):

Pleaase tell me where to change these settings.

 

I will let u know the results after changing.

 

I have make changes in .
#contentleft
#content
#contentright
#sidebar
but cant find the result as i want(image shown in post)

 

Give URL so that we can check from our end and suggest changes where required.

 

I too make use of WP-GENIUS here www.sagardezign.com/blog

Try this changes in RED:

#contentleft {
width: 650px;
float:left;
padding: 0;
margin: 0;
overflow:hidden;
}

#content {
width: 650px;
margin: 0;
padding: 0;
}

#contentright {
width: 300px;
padding: 0;
float:right;
margin:0;
overflow:hidden;
}

#sidebar {
width: 300px;
float:right;
overflow:hidden;
}