however, what i'm looking for is a way to reshape the forum on my website to make it easier to use.
nowadays, it seems there's a trend that the stackoverflow-style question/answer systems gradually replace the functionality of forum. So i think maybe it's a good idea to implement stackoverflow style and functions in xoops.
after searching google for a while, i've found several examples of implementing stackoverflow in drupal:
http://engineeredweb.com/blog/09/11/building-stack-overflow-clone-drupal-part-1
and some guy even started an open stackoverflow project:
http://ra-ajax.org/first-release-of-stacked-an-open-source-version-of-stackoverflow-com
http://code.google.com/p/stacked/
some more related information:
http://groups.google.com/group/berkeley-drupal/browse_thread/thread/dfd6027ec4cf1a8e?pli=1
http://www.staticbuzz.com/
more thoughts? :)