Sad, but true, you have to delete them & install earlier versions.
OOPs, I've since learned that iPhoto & maybe Apperture will NOT open your current docs with the older version, telling you to update the OS to 10.8.2 !??
The special 10.8.2 update the Minis need has been pulled, though there was a remnant D/L for it a few days ago I think...
No idea if it's still there or even if you want to try it.