Also known as iPhone Configuration Utility.

1. Pick the original .ipa app file on finder to tag the app(s) for installation.
2. After plugging in the device, go to the Applications tab and look for iPhoto, click install.
3. Wait for it and behold.

I wonder if Apple specifically limits the iPhoto only to run on newer devices just to encourage users to upgrade. The app — though a little sluggish on larger files — works just fine.

Windows version.