making subjects in sidebar align

This is the code
<?php } ?>
<?php if (function_exists('get_recent_comments')) { ?>
<li><h2><?php _e('Recent Comments:'); ?></h2>
<ul>
<?php get_recent_comments(); ?>
</ul>
</li>
<?php } ?>
<ul>
<li><h2>Recent Posts</h2></li>
<?php c2c_get_recent_posts(5); ?>
</ul>
<?php wp_list_pages('title_li=<h2>Pages</h2>' ); ?>
<li><h2>Archives</h2>
<ul>
<?php wp_get_archives('type=monthly'); ?>
</ul>
</li>

How can I get Recent Post to line up with recent comments, page, archive,etc..

Thanks, My site is http://www.haveanicelawn.com