They're working on getting the server software updated to the new Minecraft patch, but it usually takes 4-6 hours minimum.  So, if you don't mind a day or so of single player, do it!  I'll probably update myself because Portal 2 just showed up so I'm gonna be messing with that anyways :)  I'll update the server software as soon as they put out a release.
Bonus fun: Use "gargamel" as a seed in a new game - spawns you in a cave, when you exit, some pretty sweet scenery.
Game of Thrones was awesome!  Glad you have a group to watch it with Jon.  I watched it 3 times that night (HBO kept showing it back to back to back) and it was fantastic.  I'm stoked!  Reviews were even saying episode 1 is the weakest of the 6 episodes that reviews have seen so that's even better.
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Don't Update to 1.5 yet if you still wanna do Multiplayer