What R_Hatch said. Try importing the OBJ.

Though I'm not surprised that it gave you an error when you tried to open it in UV Mapper. That's the kind of problem I've had, trying to use engineering models in 3d art programs. Even if you find a format in common, it often doesn't work quite right. Poser doesn't recognize the DXFs I've tried. Vue does, but imports them badly. (Parts missing, the textures completely screwed up.)