There may be an easier solution, if you plan to purchase a version for Mac OS/X. I faced the same issue when I moved from PC to Mac a couple of years ago. At the time I owned the EverythingPAC for PC. I called PG Music and they very graciously agreed to sell me the Mac EverythingPAC for the price of an upgrade from a previous version. You may want to wait a bit, as the 2013 version for Mac is due to come out soon.

Regards,
Oleg.