Apple, of course, was terrific. I had to get bumped up to the Supervisor, Colin F.
So, after we cleaned up some loose iPhoto paraphernalia and an iPhoto link or folder or something from Documents, we replaced the old Documents with a new version, one we'd moved to the Desktop.
Then we went into the root folder and deleted the old Docs folder and created a new Administrator (me). After I logged out, then logged back in as the new Administrator everything worked fine.
I know that's a cryptic explanation, but really, Colin was bouncing around faster than I could take notes!
Thanks for your help, WZZZ!