For some reason I'm really having a hard time trying to install this update. I know iTunes hasn't officially released it yet but when I download that MacRumors, TUAW, Engadget, and Gizmodo gave me all I get is a .zip file. When I extract it I get a couple of folders and a few disk images. From there I don't know what to do. I double click on the first disk image and its asking for a password that I don't know. So if anyone know the step by step way of updating the iPhone please let me know. Thanks!