I am upgrading WordPress to v. 2.5.1 tonight, hopefully fixing my sidebar widgets problem – so if you experience site weirdness, please let me know! Thanks much for your testing help.
Update: version upgrade is done and tests fine, but sidebar widgets are still a problem. I don’t know if it’s a theme issue or a WP issue. It’s going to be a crazy week at work, first and foremost, so I won’t have a lot of time for other technical stuff.