Hello and welcome to JustAnswer~! My name is XXXXX XXXXX I would like to assist you with your question.
do you get an error
What happens when you try to open it
Flagg comes up that says " You can't open this version of iphoto, you must close and open latest version of iphoto.
That sometimes is an indication of a damaged library. Backup and launch iPhoto with the Command+Option keys depressed to rebuild the library. Select options #3 and #5.?
Can't launch iphoto
ok, i'm going to transfer your question to another expert