Some code I added to the Main Index template:

<!-- Start addition -->
<div class="sidetitle">
	Categories 
</div>
<div class="side">
	<mtcategories>
		<a href="<$MTCategoryArchiveLink$>"><$MTCategoryLabel$></a>
		<br />
	</mtcategories>
	<a href="gallery/" target="_blank">Photos</a> 
</div>
<!-- End addition -->