about a month ago i accidently deleted my iphoto application. I now have installed the the 2008 iLife onto my computer. However when i try to open the iphoto it tell me to upgrade and gives me this message: "Your photo library will not be readable by previous versions of iPhoto after the upgrade. The upgrade process may take several minutes depending on the number of photos in the library." When i click on the upgrade button it then replies that: "This photo library is damaged and cannot be upgraded" What do i do?