Hey try SZIP v2
(
http://www.zuneboards.com/forums/com...highlight=szip).
I tried it today and it installed fine. I had had all sorts of error messages before including one about Zune Bus Enumerator. Then when I went to run the program I got an error reporting message and the program would not launch, so I ran a repair for .NET Framework 2.0 and then restarted the computer like it asked.
(Next, I also had a message about a new device and a need to install upon the system startup. I had to go into the program files and find the Zune Bus Enumerator driver and install that manually and restart the computer, but that could have just been something specific to my problem).
Now everything is running smoothly, except for the info for all of my music, which is all screwed up just like everyone else's.
Hope this helps your problem.