This is my first book order and I am a first time owner/user of a Mac. Got to the point of "Uploading" and after 8 hours of trying, progress bar showed no progress. "Cancel" upload would not work either. I was able to create a PDF file of the book and saved it to documents before the whole upload process. Had to do a force quit and shut down. Tried 3 more times the next morning. Same problem and iPhoto hadseveral "unexpected shut downs".
But then...I opened Mac in "safe mode", tried to buy book 3 more times and at some point a box appeared saying something about repairing photo files and I clicked yes. After the repair was completed, I shut down, reopened in regular mode to try one last time and finally everything worked! Took about 2+ hours to complete. Don't know if it was a corrupt photo file, don't know if it was my ISP (use a wireless broadband service), but whatever it was, it finally worked and I can breathe again! Thank you for your quick response.