I tried Xadmaster plus MuiUnarc,but it when to try unarchive the zip file it just says unknown format file.
You might want to try copying it over to a PC and see if any of the PC zip programs can make sense of it. If this zip is within another zip, maybe this one is corrupt. You wouldn't know at first because the bigger package was okay. But when you try to unzip the zip inside, no go. I've had it happen before.
-David
