It looks like I've got wp-super-cache installed and configured properly. It is definitely caching pages (admin screens shows 77 WP-Cache and 43 WP-Super-Cache).
Every time I few the source of a page though, it shows the following:
<!-- Dynamic Page Served (once) in 0.115 seconds -->
<!-- Cached page generated by WP-Super-Cache on 2009-01-13 16:45:20 -->
The cached page timestamp does not change. But shouldn't is say "Cached page serverd"? If a cached page exists, why is it still serving a dynamic page?