iPhoto: WHAT TO DO WHEN ALL GOES WRONG

If you've edited, cropped, and otherwise adjusted an image in iPhoto and, after looking at the results, you wish you really hadn't, you can actually start overfrom scratchand get back your clean un-retouched original image. You do this by selecting the image, going under the Photos menu, and choosing Revert to Original. Okay, but what if you set up iPhoto to let you edit your image in another application, such as Photoshop? Believe it or notRevert to Original still works.