Attached is an a2i file we created for our environment. It seems to be working relatively well. Use at your own risk.
Environment: Migrating Vista to Win 7 for the most part, using 7.1 SP2. We are still in testing for PCT in our environment so please let me know if you have any tweaks on this or if you have any issues.
Just change extension to .a2i fron .txt after downloading.