I just wanted to point out that in Mac Internet Explorer 5.2 your page is very hard to use. I'm not sure if you realize this, and it may be simply because Mac IE 5.2's CSS implemtation sucks, but it really is hard to use (and may drive people away from using WordPress - which is a REALLY great derivation of b2...).
Also, I'd suggest useing Phorum for your message board. It's a PHP / MySQL message board system (just like WordPress) and I think it would be much better than this one. If you'd like someone to kind of work with the message board and get it set up for you, I'd be more than happy to. I've worked on http://www.ucsc.edu and other sites, and I really like the way Phorum works. You can check it out at http://www.phorum.org =]
Thanks for making us a GREAT product. Now if only it had image thumbnail creation capabilities.. hehe