I thought I'd change things a bit... and boy, did I.
Somehow I managed to get the various gadgets underneath the blog posts rather than to the side of them, and now they won't move.
I hope to have things back in something approaching a reasonable shape soon.
UPDATE: Whew! I will try to bring back some sidebar items that didn't seem to want to move back into position, and I will rethink the masthead image, but at least I've overcome the major snafu. The odd part--nearly as I can tell, I had to edit the blog with Firefox to move items around. Under Google Chrome, they just did not want to go.