Need help with a wordpress plugin no response from wp forum yet :(

Hi I am very new to wordpress I hope many of us here use or have used wordpress. I recently setup a blog on wp and installed a plug-in called Page Meta to add Meta Tags (title description and keywords to every page) There is one very confusing instruction on #3 that I am not able to follow. I need help with it. I posted in WP forums but have not received any reply yet. I hope here I will surly get some help.
Here is the link to the post that I have made in WP forum and link to plug-in page
WP forum post
Plug-in

I just need help understating the php code and few instructions on how to edit php template and customized it according to my needs.

 

You need to change wp_title() to <?php if (function_exists('meta_title')) { meta_title(); } else { wp_title(); } ?>

you can find it in header between title tag (<title>PASTE HERE</title>)

 

Here is the code between my <title></title> tag

title><?php if (is_home()) {
	echo bloginfo('name');
} elseif (is_404()) {
	echo '404 Not Found';
} elseif (is_category()) {
	echo 'Category:'; wp_title('');
} elseif (is_search()) {
	echo 'Search Results';
} elseif ( is_day() || is_month() || is_year() ) {
	echo 'Archives:'; wp_title('');
} else {
	echo bloginfo('name'); echo wp_title('');
}
?></title>

PHP:

According to the instructions it should be this:

title><?php if (is_home()) {
	echo bloginfo('name');
} elseif (is_404()) {
	echo '404 Not Found';
} elseif (is_category()) {
	echo 'Category:'; if (function_exists('meta_title')) { meta_title(); } else { wp_title(); }
} elseif (is_search()) {
	echo 'Search Results';
} elseif ( is_day() || is_month() || is_year() ) {
	echo 'Archives:'; if (function_exists('meta_title')) { meta_title(); } else { wp_title(); }
} else {
	echo bloginfo('name'); echo if (function_exists('meta_title')) { meta_title(); } else { wp_title(); }
}
?></title>

PHP:

If I am doing right it shows only a blank page

 

here is

<title><?php if (is_home()) {
    echo bloginfo('name');
} elseif (is_404()) {
    echo '404 Not Found';
} elseif (is_category()) {
    echo 'Category:'; 
    if (function_exists('meta_title')) { meta_title(); } else { wp_title();}
} elseif (is_search()) {
    echo 'Search Results';
} elseif ( is_day() || is_month() || is_year() ) {
    echo 'Archives:'; 
    if (function_exists('meta_title')) { meta_title(); } else { wp_title(); }
} else {
    echo bloginfo('name'); 
    if (function_exists('meta_title')) { meta_title(); } else { wp_title(); }
}
?></title>

PHP:

 

I will check with the code and let you know. Thanks!

 

Code is working fine. I made some more changes and everything is working fine according to my will
Here is the code:

<title><?php if (is_home()) {
    echo 'Title Text.';
} elseif (is_404()) {
    echo '404 Not Found';
} elseif (is_category()) {
    echo 'Category:'; 
    if (function_exists('meta_title')) { meta_title(); } else { wp_title();}
} elseif (is_search()) {
    echo 'Search Results';
} elseif ( is_day() || is_month() || is_year() ) {
    echo 'Archives:'; 
    if (function_exists('meta_title')) { meta_title(); } else { wp_title(); }
} else {
    echo bloginfo('name'); 
    if (function_exists('meta_title')) { meta_title(); } else { wp_title(); }
}
?></title>

<?php
if  (is_home()) {
echo "<meta name=\"description\" content=\"Description Text \" />\n";
}
?>

PHP:

Now I am able to add my own description and title meta tags
Thanks for your help.