Cary's iPhoto app has been deleted. Have her pictures been lost? Leo says probably not. She can get iPhoto back through the app store, but her originals should still be on the hard drive. She should look for a folder called "Original Photos" and then select "Show Package Contents." She should back up all of her originals. Once she's done that, she can open the new Photos app and it'll migrate the photos automatically. Photos isn't worse than iPhoto, it's just different.