iPhoto update issue alter disk replacement

I got my Seagate disk (1TO) replaced today in an Apple Store. Everything went fine and I restored my data, applications and settings from my Time Capsule. I have a problem when trying to update iPhoto to version 9.4.2 from the MAC App Store. The system says that I am not able to update the application as bought with another account. When I bought iPhoto 2 years ago with my iMAC the MAC App Store was not even existing ! I believe it has to do with the restore from my Time Capsule. Any idea to solve this problem ?
Thanks