Some of the pictures below are obviously promotional stills and not really cut scenes, but check out that shot of Vader pointing at Dengar. Do you think he's saying, "Noooo disintegrations..."? It might be from an alternate take of the scene. Speaking of Dengar, the shot of him on the Decipher CCG card is a weird one. It's definitely doctored and I can't really tell if it's an actual still or if they added the background in or what. Also, have a look at the picture of Vader chatting with Bossk. Interesting stuff indeed.
As I said, most of these probably aren't really from cut scenes since these scenes do exist in the finished film. They are most likely promo stills or alternate angles. Nonetheless, they're here for your enjoyment as none of these particular stills are in the film.