How do I reinstall Aperture 3 after replacing my MBP HD? .
I have just replaced my HDD on my Macbook Pro and upgraded to Snow Leopard. After dragging over Aperture from a back up drive it would not start up, so I deleted the app, opened Terminal and performed sudo pkgutil --forget com.apple.pkg.Aperture. Now it seems the App store wants my credit card to buy a new version? Do I have to do this? I have the serial number from the orginal purchase (started with the Trial App) to install when I get a working copy of Aperture.
MacBook Pro