You just open the BMP in your paint program of choice and draw in the lines. You should draw over the lines a bit to make sure your texture covers all your model. Then you import in obj model back into RDS.....but here's the problem. RDS will TRASH your UV mapping and therefore scramble the way your texture map looks. This is what my original plea for help was all about. RDS will trash all your work. Anyone know how to get it to leave the UV mapping alone?