Note to DR Jrand69:
There was still no evidence that the photo was going in, but I managed to post on that page in spite of the tiny unusual posting window that didn't even scroll the normal way. What a weird page.
First thing that happened when I clicked "Post" is that I saw a flash of it (WITH photo), then it completely disappeared. I refreshed the page, and there was a small unformatted version of the post on the right side, not in the main section, and with no picture. But not five minutes later I got a "like" from "Tomie" and a thank you comment, and the post now appears as normal, albeit with two copies of the damned picture thanks to my fumbling thanks to #%!*# Facebook. Apparently that page is set up to require everything to be approved and then released. Whatever. Went into edit mode and couldn't find a way to delete one of the duplicate photos, so the hell with it. I did my job.
But thank you for finding that page!