The problem is, XenForo using Zend Framework, Developers should learn Zend before code anything, that's sad.. Xenforo should have it's own Framework :)
it's bad idea to use any beta or rc.. I suggest you to wait for Final version :)
btw, I've honda and i love it, may I still visit your website :)
and, your site is really fast. very very fast.. 9m posts, 40gb db.. nice speed.