Hi Gene,
Yes, you're right, I changed the background color of the logo, and will probably change it again - I still don't like it. In fact, I'm starting not to like the logo. I think it has potential, I like the juxtaposition of Darwin and the ark, but I'm not an artist and it seems to be seriously missing something.
You're right about the old logo persisting on some of the thread pages. In UBB software some pages are generated on the fly each time you request them, like the page for entering messages, and others are actual HTML files on disk, like the thread pages. These pages are only regenerated as necessary, such as when a new message is posted, unless I actually go in through the control panel and tell the software to update all the threads.
I sent you email a while back about my need for moderators, but you never responded. Did you get it?
--Percy