I forgot to redo the date on my Nikon D50 after it got shipped back, now it has been being imported on the wrong date settings for a few months, due to this, I started relocating my iPhoto library pictures to their correct dates, but now, iPhoto cannot pick it up with the originals being relocated and will not allow the others to be imported. What to do from here? Should I completely erase my iPhoto library and back up all the pics and start from the ground up?