Thanks Mark, I'll look into those. As for my issue I was having, in the script itself, it was calling for a .bmp file, but the file provided was a .tga I converted it, and it seems to work fine now :D
You're taking the stability of 3dsmax into your own hands... Also it's rumored that there is a sizable update to the unwrap tools in the next version of 3dsmax that will render chuggnuts UV tools more than likely un-updateable. So you're probably better off using the bits and pieces they already took from the tool and…