You will find the details of your registration:
-Copy T2PDF.EXE or BT2P.DLL or CT2P.DLL to the Desktop
-Right click on the .EXE or .DLL
-Choose "Properties" (XP)
-Choose "Version" or "Details" (VISTA)
-(XP)Under "Version Information" click on each position ...
And you will see your registrations' details