Yeah, its a desktop, so no, I did not try different wifi.internet connections. What are you thinking it might be? I will add that in my many unsuccessful attempts to upload the calendar (which almost always got to the very end of the uploading process) it took hours (4-5) to do so. But when I switched user accounts, it took maybe 45 minutes. All attempts were using the same internet connection.
Have successfully uploaded iPhoto Book to http://www.prestophoto.com/designer/. Book has arrived and was $50 cheaper than Apple. Quality not quite as good, but hey, better than no book at all!
Also noticed an iPhoto update today. Not much given away, perhaps they have silently fixed the problem without admitting there was a glitch. Maybe the iPhoto book publisher in Japan was not up to date with the changes?