Actually the only good thing vBulletin did in the last two years was adding an additional.css template in the admincp. You can make as many changes as you wish on the forums with css in that template and it will not get overwritten during a version update of the software. Let me know if you need some help with that. Forums look good now but would be even better if you can loose that blue'ish-vbulletin-look on the forumhome by using the rFactor.net fonts and colors. Should be a quick fix
The forum has a strangely familiar look to it. It's like visiting an old friend or, rather, an old forum.
Nice, and functional I like the orange background. About the facebook button, well it's there 'couse people not registered here have to see it straght away, so they can immediately post questions and feedback. Oh and I just saw the "autosaved" feature while I'm writing, that's cool, no more post gone, I remember a couple of times I forgot to Ctrl-C and woop.. session expired, bye bye post. So that's a good feature really.