update programs installed by other user (other appleID) I use a mac install before by another user. This user installed some application like iphoto with this appleID.

Now this user does not use this computer, and I want update the applications he install before. I have my own AppleID. when I ask to update application the system say me I can't do that because this application was install by another appleID.

I dont want to uninstall the programs, because than I will have to buy them anew. Do I have any other way of updating accept asking for the old user for his password time and time again? Cant I somehow "move" these programs from his ID to mine?

Thanks
I had the same problem, and it worked: Apple App Store: Grayed out Aapple Id Explained - Valiant:


  
  Go to the app listed in the App Store as needing an update (usually in the /Applications folder).
  Right click the app then click “Show Package Contents”.
  Go into the “Contents” folder, then into the “_MASReceipt” folder.
  Delete the “receipt” file (you may need to enter a local administrator 5. username and password).
  Please note that the app will still work as intended.