A little thing that bugs me is that on the new forums, the sidebar (holds the vote links, online members, etc) stops at the top of the page when you scroll down, waits a bit while you scroll through the main posts, and continues to scroll with the page once you go down far enough so that it lines up with the bottom of the older main posts. My suggestion is to make the sidebar continue scrolling with the rest of the page all the way down (i.e. it won't be lined up with the bottom), like the old forums.
Really not that important; I'm just too lazy to scroll that extra bit to see the recent tweets/profile posts x)

Sorry if confusing ;)

 

Bump; I'm starting to get a little used to it, but hey, if it's easy to change.