iPhoto Library Manager is a great little app for, you guessed it, managing iPhoto Libraries. It can now copy hidden photos in iPhoto 7 and includes several bug fixes. While you can copy hidden photos you need to go into iPhoto 7 and unhide them. If they are hidden then iPhoto won’t make them available to any external apps. Click the thumbnail to see the release notes.
Update Sept. 27th: Yesterdays release of iPhoto 7.1 broke yesterday’s release of iPhoto Library Manager 3.3.1. IPLM has been updated to version 3.3.2 to address the issues. It’s available from the same link.