After my computer came back from apple care and I replaced my TB hard drive in it, it is now asking for my serial number for aperture 3. I had it saved in a password app on my phone but I never backed it up on my computer and have since restored my phone (the woes of a jailbreaker). The program was actually given to me as a gift from a friend who was an apple employee (non-retail) and registered in his name while I was working contract security with him at apple. I left the company over a year ago and I'm having a hard time getting a hold of him now. I thought that I was able to login to my apple account somewhere and find the serial but I can't find it. Besides trying harder to get a hold of my buddy, are there any options to get it. I might just end up purchasing it to have it actually registered in my name for upgrade purposes. It's a great program.