Downgrading iPhoto

[Oneiromancer]

Can I downgrade iPhoto to the older, 2008 version if the photographs have already been adapted to the 2009 version?

 

[spice weasel]

I don't think you can downgrade once your library has been updated. What you can do is export all of your photos and then reimport them into iPhoto '08.

Why do you want to downgrade anyway? I can't really remember much about iPhoto '08, but '09 seems fine to me. Or you having problems with it?