PokerTracker

I had not used Poker Tracker V2 for a while and when it would not read hand histories from Pokerstars I searched and downloaded the patch:

http://s217900936.onlinehome.us/patch21703f.exe

After I installed it, Poker Tracker will not open.

What do I do now?

What email was used to purchase PT2? I have no record of this one you used to sign up for the site.