To center the logo, go to the Admin page, then Themes, and then Colors & Theme Creator. Where it says "Forum Banner", go to "Text/Logo align", click on the selection box and select "center". Save your changes, and now the logo should now be at the center!
The Simpsons: Season 32 Ratings (so far):
Undercover Burns: 3/5, I, Carumbus: 4/5, Now Museum, Now You Don't: 1/5
Treehouse Of Horror: Opening: 4/5, Toy Gory: 5/5, Into The Homerverse: 2/5, Be Nine, Rewind: 6/5