[austrain]

Thanks. That plugin is awesome! Its basically exactly what I'm after.... but

I'm thinking about building the site around vbulletin 'groups'. There will be a forum but it will be hidden from all users. The home page of the site will direct to /groups.php
Users will join the groups they like and have discussions within them. There won't be any other mode of communication between members - i'm hacking away at vb to hide everything else.

So that plugin is awesome but it doesnt apply to group discussions or replys : (
I want to go with groups because it's a less formal way for members to interact.