Alright, after a few hiccups it seems like the creators of Norman uploaded the rig for good.
Norman is a Maya puppet built unofficially for the Academy of Art University Pixar classes. Since those classes disbanded, we decided he should finally be set loose. Anyone should feel free to use the rig for non-commercial purposes, to edit him and pass him along to your heart's content.
You can find all the info and files here. And a how-to-modify-Norman @ Animation Buffet.