Yippee, everything seems to be working! Just slow browser cache problems, apparently. So far version 3.1.1 is beautiful, and the entry boxes seem bigger which is nice (I always thought the boxes in version 2.6+ were too small)

I got my key to be added to the MT "recently updated list", I've bugged tech support twice and gotten prompt responses. I installed the new version of MT Blacklist, I think I did it correctly. I'm already thinking up subcategories to add, exciting stuff for an obsessive compulsive...

Lots to learn, but time to sleep. My brain is overloaded enough for one night.