I have been working with MediaWiki 1.5 and I've been having a bit of difficulty with the Main Page updating when I submit changes to any of the templates I use.
You may examine my wiki here: http://www.phyco.org/
The largest problem I'm having is that I have installed an RSS extension and the Main Page won't update when the RSS feed is updated. This is a big problem! How can I fix it? --- Phyco.org: For A Phyco Future.