por lo quwe ví en el ejemplo, lo construyen así:
Cita: <ul>
<li><a href="menu/index.html">DEMOS<!--[if IE 7]><!--></a><!--<![endif]-->
<!--[if lte IE 6]><table><tr><td><![endif]-->
<ul>
<li><a href="menu/zero_dollars.html" title="The zero dollar ads page">zero dollars</a></li>
<li><a href="menu/embed.html" title="Wrapping text around images">wrapping text</a></li>
<li><a href="menu/form.html" title="Styling forms">styled form</a></li>
<li><a href="menu/nodots.html" title="Removing active/focus borders">active focus</a></li>
<li><a href="menu/shadow_boxing.html" title="Multi-position drop shadow">shadow boxing</a></li>
<li><a href="menu/old_master.html" title="Image Map for detailed information">image map</a></li>
<li><a href="menu/bodies.html" title="fun with background images">fun backgrounds</a></li>
<li><a href="menu/fade_scroll.html" title="fade-out scrolling">fade scrolling</a></li>
<li><a href="menu/em_images.html" title="em size images compared">em sized images</a></li>
</ul>
<!--[if lte IE 6]></td></tr></table></a><![endif]-->
</li>
</ul>
probalo así