Minecraft 1.2.5 comes out April 4th. You have bad timing on leaving, what about updating to it? Jeb released 1.2.5 early as a "Prerelease," but he won't change ANYTHING from the April 4th release. This prerelease is meant solely to allow mod makers to update sooner than later. AKA your mods might be working partially by launch, so... ya. Have mini set this up?