Download the latest EFILive V7.3 pre-release 003 software here:
http://www.efilive.com/downloads/downloads_730.html
A complete CD-based software installation package will be available soon.
Please post any issues in this thread.

The 003 update, was to apply a work-around to EFILive so that EFILive can read PCMs reflashed by GM's TIS programming system which 50% of the time delete the PCM's hardware number and VIN.

Regards
Paul