Sorry, I'm on a desktop PC now, really cant give you a descriptive answer on the iPhone.
1. Burn the Image file
http://forums.techpowerup.com/attachment.php?attachmentid=21786&d=1231880794
2. Unzip/Unrar ATI Flash v3.60 to your C: or D: drive, and place the rom file as well.
3. Restart...