I've got a modification on my phpBB at
saltwarz.com[*1] called chatmod that adds an IRC chatroom to the message board(pjIRC). I'm not sure if it would work on a geeklog site that has phpBB integrated into it, but anyone that is interested is free to download it from my site. I am NOT the author of ChatMod, and as far as I know there is ZERO support for it so try at your own risk. You can grab the file
here[*2]
and if anyone wants to know it IS NOT easymod compatible...or atleast I've been unable to get it to work with easymod....all modifications have to be done by hand(or whatever).