Alrighty, I did two things in a short period of time (moved to GoDaddy from another server, and upgraded to 2.3.3), and I'm not sure which broke it.
The blog itself is up: http://www.zerflin.com/Benjamin/YoungSavage/
But individual posts: http://www.zerflin.com/Benjamin/YoungSavage/2008/03/09/vector-things/
don't work at all.
Any ideas? What can I do to fix it?