Drop down menu problems in IE

I am having a great deal of problems with my menu in internet explorer but it seems to work fine in firefox. www.deadfrontiersurvivors.com

CSS:

* {
margin: 0;
padding: 0;
}

body {
margin-top: 220px;
background: #000000 url(img01.jpg) no-repeat center top;
font: normal small Verdana, Arial, Helvetica, sans-serif;
color: #999999;
}

h1, h2, h3, h4 {
color: #FFFFFF;


}

h2 {

text-decoration: underline

}

h3 {
}

h4 { font-size: 17px;
text-decoration: none;
}

p, blockquote, ul, ol {
margin-bottom: 1.4em;
line-height: 1.8em;
text-align: justify;

}

p {

letter-spacing: 0px
}

blockquote {
margin-left: 2em;
margin-right: 2em;
font-style: italic;
}

ul {
margin-left: 3em;
}

ul li {
}

ol {
margin-left: 3em;
}

ol li {
}

a {
text-decoration: none;
color: #FFFFFF;
}

a:hover {
text-decoration: underline;
}

img {
border: 0px solid #C4C2C2;
}

/* Boxed Style */

.boxed {
margin-bottom: 20px;
}

.boxed .title {
margin: 0;
padding: 5px 0;
background: url(img07.gif) repeat-x left bottom;
font-size: 1em;
}

.boxed .content {
padding: 15px;
}

/* Post */

.post {
}

.post .title {
padding: 10px 0;
background: url(img07.gif) repeat-x left bottom;
font-size: 1.6em;
font-weight: normal;
}

.post .date {
padding-top: 5px;
font-size: .8em;
font-weight: normal;
}

.post .date .month {
}

.post .date .day {
}

.post .date .year {
}

.post .meta {
padding-bottom: 10px;
background: url(img07.gif) repeat-x left bottom;
font-size: .8em;
}

.post .meta p {
margin: 0;
line-height: normal;
}

.post .story {
padding: 20px;
}

/* Header */

#header {
height: 61px;
background: url(img02.gif) repeat-x;
}

/* Header > Logo */

#logo {
width: 700px;
height: 19px;
margin: 0 auto;
padding: 6px 0 0 0;
}

#logo h1, #logo h2 {

letter-spacing: 1px;
font-size: 11px;
}

#logo h1 {
float: left;
}

#logo h2 {
float: right;
}

#logo a {
}

/* Header > Menu */

a {
text-decoration: none;
}

a:link {
color: #white;
}

a:visited {
color: #white;
}

a:active {
color: white;
}

a:hover {
text-decoration: none;
}

.divlink a {
display: block;
width: 160px;

}

.divlink a:hover {

}

ul {
list-style: none;
width:60em;
padding: 0;
margin: auto;

}

#nav a {
font-weight: normal;
color: #red;
}

#nav a {
text-decoration: center;
}

#nav li li a {
display: block;
font-weight: normal;
color: #red;

}

#nav li li a:hover {
width: 160px;
background: none;

/* Fix IE. Hide from IE Mac \*/
* html ul li { float: left; height: 1%; }
* html ul li a { height: 1%; }
/* End */

}

li {
float: left;
position: relative;
width: 9em;
text-align: center;
cursor: default;
background-color: none;
border: none;

}

li#first {
border-left-width: 0em;
}

li#last {
border-right-width: 0em;
}

li ul {
display: none;
position: absolute;
top: 100%;
left: 0;
font-weight: normal;
background-color: #white;
}

li>ul {
top: auto;
left: auto;
}

li li {
display: block;
float: none;
margin:0;
padding:0;
background-color: black;
border: 0px;
}

li:hover ul, li.over ul {
display: block;
}

/* Content */

#content {
width: 700px;
margin: 0 auto;
padding: 20px 0 0 0;
}

/* Content > Main */

#main {
float: right;
width: 800px;
}

I'm sorry if i posted the code the wrong way and thank you.