Sorry everyone!
TreeSprite asked me to pass this message on two days ago, but I've just been so busy this week that I forgot:
Hi Laura! Would you let everyone know that there's apparently been an error with billing, and I have to contact the domain provider to ensure that the domain name sticks around. They're saying I didn't pay when I have proof I did. *eyeroll*
Anyway, until I get it straight everyone should use http://ctopia.treesprite.com/. It will be worked out in a few days or heads are going to roll. I'm rather peeved at the moment!
TreeSprite