Awesome, I like the new style!
Two minor suggestions:
- The individual posts seem a bit less separated at first sight, maybe a border or a slightly larger space solves it? I noticed just now while typing there's a nice subtle black border on the post page around the post bg. I think it might work nice in the thread as well to aid visual separation.
- The border color of the input fields in the post page are gray on hovering and blue by default and active. Maybe swap the default and hover color, so they are gray by default and blue when active and hovering. So the field with the focus is highlighted.
Should be two easy css tweaks if you agree with them.
Otherwise good stuff, really like it! Looking forward to the new trophy style sigs!
[EDIT] I just noticed a couple of smiley's got replaced with slicker versions. I like the old flat smiley's better actually. Especially the old grin smiley was my favorite.