I love the style and colors on the forumhome page. The welcome message is cute but a bit whiny
I don't like that you use the default envelopes on your forumdisplay page. I think your little squares on the forumhome are much more original and could be adapted for use instead of the envelopes.
Likewise, I would probably not show the message icons on forumdisplay, but that's just me. I like the spartan look.
I really like your newreply and newthread buttons, etc. I think I would kill or change the other default vbulletin icons in the postbit though. They just don't match.
All in all, I think it's very pretty. Hopefully, you'll get some more members and won't have to keep talking to yourself.