So I started up my Minecraft directly instead of through Magic Launcher and of course it asked to update and I clicked Yes without thinking, so I'm on 1.3.2 now (yes, it's out). Gahh! Wait, there's this MCNostalgia tool that lets you roll back to old versions: http://www.minecraftforum.net/topic/800346-tool-mcnostalgia-212-now-works-with-132/. I'm gonna give that a try and see if it works.