I tried to downgrade from 2.0 to 1.1.4 after i stupidly restored it with itunes 7.7 and it installed 2.0. I did all the dfu stuff and installed the old itunes but when i try to restore in dfu mode itunes gives me a message that says "software for this iphone is currently not available" i reinstalled itunes and it didn't give me that message but i want to restore again and its giving it to me again???