Looking for help fixing an issue in Internet explorer

I am wondering if someone can please help me with this problem...

If you look here, you will see a link to 'My blog' in the side nav menu:



^^This is in Firefox.

Now look at the same site in Internet Explorer:



Also tested it in Netscape and Opera, and it doesn't display in those browsers either.

Can anyone offer any advice on a fix for this problem?

Many thanks if anyone can help

 

Here's the sidebar code (Maybe this will help)

<div id="sidebar">


		<div id="sb_top">
	        <div class="sb_logo">
	        <a href="<?php bloginfo('url'); ?>" title="<?php bloginfo('name'); ?>">
	          <!-- The logo -->
	          <img src="<?php bloginfo('template_url'); ?>/images/logo.png" alt="Home" />
	          <!-- ...or you can remove the logo and add the line below -->
	          <!-- <a href="<?php bloginfo('url'); ?>" title="<?php bloginfo('name'); ?>"><?php bloginfo('name'); ?></a>  -->

	          <!-- ... and now the slogan: -->
	          <br />
	          <?php bloginfo('description'); ?>
	        </a>
	        </div>
		</div>


<ul>

    <!-- Navigation -->
	<li>
	    <ul class="navlist">

	    	<?php wp_list_pages('sort_column=menu_order&title_li='); ?>
	        <!-- More info at http://codex.wordpress.org/Pages -->
	        <!-- ... and you should read the readme.txt file -->
	    </ul>
    </li>

    <!-- Author -->
    <li><h2><?php _e('Model Susie Hutson'); ?></h2>
		<ul>
		  <li>
				<!-- Change image location below -->
	            <img src="<?php bloginfo('template_url'); ?>/images/sue.hutson.author.jpg" alt="Photo Example" />
              <p>Hi! My name is Susie- Welcome to my online modeling portfolio. Feel free to take a look around.</p>
            </li>
		</ul>
	</li>

    <!-- Syndication -->
    <li>
		<ul class="feed">
			<li>
		        <a href="<?php bloginfo('rss2_url'); ?>" title="<?php _e('Click to subscribe to my blog'); ?>">
					<?php _e('<abbr title="Really Simple Syndication">RSS Feed</abbr>'); ?>
				</a>
			</li>
		</ul>
    </li>

<!-- Start Widget-ready -->
<!-- If you use Widgets (control panel - > Presentation - > Widgets), the content below will be replaced by the widgets you add to your sidebar -->
<?php if ( !function_exists('dynamic_sidebar') || !dynamic_sidebar() ) : ?>


    <!-- Categories -->
	<li><h2><?php _e('Categories'); ?></h2>
        <ul>
			<?php wp_list_cats('sort_column=name&optioncount=1&hierarchical=0'); ?>
		</ul>
	</li>

    <!-- Archives -->
	<li><h2><?php _e('Archives'); ?></h2>
        <ul>
			<?php wp_get_archives('type=monthly'); ?>
		</ul>
	</li>

	<?php get_links_list(); ?>


	<li><h2><?php _e('Meta'); ?></h2>
		<ul>
			<?php wp_register(); ?>
			<li><?php wp_loginout(); ?></li>


			<?php wp_meta(); ?>
		</ul>
	</li>

<!-- End Widget-ready -->
<?php endif; ?>


</ul>


</div> <!-- /sidebar -->

HTML:

 

Sorry for bumping (Hate doing this), but it's important I fix this issue..

Is anyone able to offer any info on this?

Many thanks