If you prefer the white background, on the left side menu you'll see Themes.
Select ICE Curve from the dropdown that reads BR Finale, and then click "permanent" and Change. You'll jump to a white background theme. I'm working on cleaning this one up (BR Finale) but once this is done, I'll hop over and update that one.
As for the Karma points (aka Laugh/Good Idea) the negatives was something that was previously coded over to use that feature in a different way. When we upgraded the forums (for security purposes) this mod did not pass forward. I'll see if I can figure it out as I'm playing around, but it's not a high priority right now.
The colors for the stars I'll update those shortly.
The personal uploaded images (like my own) will either come over properly with the rest of the site (as the system recognizes the folders) or they'll need for me to tweak the allowable width to permit the images to display properly. I'll look into the latter.
Let me know if you see anything else out of whack...
By the way, I know the Unread Posts no longer sorts by Category. That's a more complex code and I'll see if I can recreate it, but again it's not a high priority.