Lance, thanks for your replies. Your emails are getting through, now. I never did find the first one (although I *did* get the original WP annoucement about Coraline, which implied that I didn't really need to do much of anything, so I didn't......oops!)
Unfortunately, I think you're talking way, way over my head. Layering rules, content-boxes, etc......it looks like English, but I can't do much with it. Not your fault....but I'm no programmer!
I think I got the primary issue resolved -- which was the center-tabbed text. While I was at it, I got the font size and the leading fixed. This is a good start.
However, the column widths still look off to me, and there's this WordPress advertisement at the bottom of my blog that I don't remember seeing before! I purchased the "No-Ad" upgrade and it doesn't expire until October 2010. It states that, "...We occasionally serve ads on WordPress.com as a way to pay our bills, purchase this to ensure that we will never show any ads on this blog."
I took this to mean that WordPress would not show any ads on my blog. But....there it is.
If there's anything that can be done about this, I'd appreciate it. If it involved editing the CSS, please be very very specific about what and where to make the edits...my resource for translating this stuff won't be available again for several days, unfortunately.
Thanks again for the attention to this stuff!