Thanks for answering. Yes, I hit the upload button, then copied and pasted the photo links, hit Open and watched the download bar progress. Everything appeared to be working: when I hit "preview" it showed three lines of type that looked like placeholders (can't remember what they said), but when I hit Finished, they disappeared.
I used the same technique to upload my avatar some time back, and now see THAT didn't work, either.
Is pasting the photo link the mistake? If so, how do Iselect the photo I want to upload?