Does anyone have any tips on how I can get a PostNuke site recognized by the search engines?
I have a PostNuke site with a phpBB2 forum that just doesn't get any respect from the search engines. :D

Did you try... submitting it :-o

First go through and have a look at some hacks on postnuke.com and check out nukeforums.com. That should get you started.

If by chance you don't find what you're looking for, start reading up on mod_rewrite and do it yourself. :)