Dave,
Did you move the individual profiles and smilies to the bottom of the posts on purpose? There's just white space next to the avatars. Seems like a lot of wasted space.

Have you considered reconfiguring the block designs in the threads? There are so many lines on a thread page and so many blocks. Couldn't you give us just one box each, please, and space out the info that needs to be in each poster's box?

The other (unnamed) website is so well layed out...