Things may look funky for a bit. We'll be back to normal soon.
UPDATE 7/26:
Things are pretty much back to normal. Deal was that I upgraded my WordPress theme from the original veryplaintxt install to the developer's latest version. I had put off upgrades for a long time because I had made a bunch of hacks to the original theme before I knew enough to document my changes to the style sheet and templates. I finally bit the bullet and made the upgrade and reverse engineered my previous hacks (with a little help from a friend with better coding skills than mine).
I can't say everything is exactly the way it was before, but it's close enough and I am quite pleased. The code and/or the css of the latest version of veryplaintxt is cleaner than it was before and plays much nicer with my plugins (Alex King's Share This finally works the way it was supposed to!). But, being a big time novice when it comes to CSS, I so preferred the style sheet on my original install of the theme, with the different types of styles divided out into commented sections. I was pretty much at sea when it came to figuring out some things that I had previously been able to accomplish with much less knowledge than I have now. Anyway, I may still make a few more tweaks, as well as some other external improvements (e.g., my shiny new RSS feeds top of the sidebar). Many thanks, P, for your help!
I know I must be boring some of my usual readers to pieces by now. I have long contemplated whether I should write about tech stuff since I've become increasingly pre-occupied with it and it is a major part of my paid work these days. Thanks for listening.