Tonight I upgraded my ipod touch to 2.1, and jailbroke it with QwkPwn 2.1 for windows. It worked flawlessly, and installed cydia for me. Followed all the instructions to download the movies. When I open dTunes, and browse to the movies I downloaded, it also gives me the error message, "This movie format is not supported". What is the fix? I'll keep researching and post an update here if I find anything......