The main page seems a little overwhelming, but is nice. I believe that the latest blogs and discussions should be in the middle however, and the articles and ads on the left. Generally speaking, menus are on the left, top, or right of a site, not the center.
The new forum layout seems much nicer and more standard. It just feels smoother. If it supports stickies and such now, it'll be great!
I like the site for the most part, but searching does yield some strange strange results. I also feel odd using the articles links in the middle of the main page, but overall the design seems great. I'll comb through it in more detail tomorrow when I have more time.