Picasa Web fixes all of my problems. Thanks Google!
Star Wars Revisited Visual Comparison Part 1
Star Wars Revisited Visual Comparison Part 2
*SPOILER WARNING* This shows every change, including the location of the Lucas cameo, and a before unnoticed Adywan cameo (and I'm not talking about the arm in the cantina). If you want to be surprised by any of the visual changes, don't watch it until after you've seen the whole thing.