I had the same problem. I redownloaded the iXtreme from the usual place and it worked fine. It's very confusing that they didn't rename the second revision to rev.2 or something along those lines.
I came accross another problem whilst using the program though. I have 2 VIA SATA contollers. One onboard VT8237A and one 6421 card.
In step 2 when I click list "SCSI Based Conrollers" it comes up with the error message :
"Unhandled exception has occurred in a component in your application. If you click COntinue, the application will ignore this error and attempt to continue.
The service cannot be started, either because it is disabled or becuase it has no enabled devices associated with it. (Exception from HRESULT:0*80070422)"
Once I click continue my VIA VT 6421 RAID Controller shows up in the 'window'.
If I click "List IDE Based Controllers" a list of IDE channels, VIA Bus Master IDE Controller - 0571 and VIA Serial ATA Controller - 0591 show's up in the 'window'. If I select the VIA Serial ATA controller it comes up with the same error message as mentioned earlier.
So I have 2 questions:
1) Are these error messages normal and I just click continue? As I'm assuming they are showing because nothing is plugged into the SATA ports.
2) The "Serial ATA Controller - 0591" is my 8237 on board card?