plug-in forum

Hi, a client wants me to add a forum to his existing site...which is not a problem, the problem is he wants it to work off his existing site eg: once someone logs in to the main site they dont have to relogin or create new accounts in the forum section ....a one login gets you total site access kind of deal. The second thing is, as clients go, these ar'nt too bright :-) a reallll simple forum/forum admin is needed, I was looking at phpbb but after running a test install on my system i think it would be a little too complicated for them plus it has to sit into the existing design... recommendations please..... Thanks, Ryan -- No virus found in this outgoing message. Checked by AVG Anti-Virus. Version: 7.0.308 / Virus Database: 266.9.1 - Release Date: 4/1/2005