Well that program will work just fine. It will import and export 3ds files. I got it here and it not to shabby. It blows UVmapper away. It all depend how they make the object files. Some programs can make them really tiny. Other programs they explode. The easiest way to texture object file is Z-Brush but the files end up being rather large. It is the best by far way. You can paint on them directly. I also have that program here. Unwrap 3d is the most powerful way to work on such files for it's price. It's cheap and if there is no uv data it will unwrap the polys making it easier to paint the old fashioned way.