I reinstalled my version 2 scannahand and went to my old email for the registration code. I then followed the suggested link for the upgrade. When I downloaded version 3, installed it and put in my version 2 registration code, it registered as invalid. I then went to the purchase center but I could not find an upgade price. Is the choice for up grade to simply buy the new version and throw the old version away or is there a new and specific upgrade page I could go to?