Morrus is working on it and I'm sure they have server back-ups (at least I would hope so).
We can continue to play, don't you all have back-ups of your PC's? You probably should have. I know I have all my PC's CS's saved on my hard drive. I don't have the links to XP or treasure, but that would only take a bit of time to recover.
If they can't get it back in any form we'll need to discuss what next steps are, but lets see what comes of Morrus' efforts.