To promote the launch of the first full-length Simpsons feature film, Burger King and Fox have created The Simpsonizer. Woo-hoo!
Here are some tips from my own trial and error:
1. The site is under a heavy load, so if you keep getting errors, try again.
2. Your picture needs to be at least 640x480, but bigger is better. Go for 800x600 to be safe.
3. 72dpi is OK, but again: bigger is better.
4. Straight-on head shots are all that seem to work. If you get errors, go into Photoshop and pump up the contrast settings. The more, the better.
5. While in Photoshop, removing any random items behind your head will also improve your results, especially if they have a lot of texture. A white wall works, but things like bricks, trees and skylines need to go.