zorares, for 'Stringwhite', load up the Biker Shorts then in the Surface Materials menu set the object colour to white and the highlight colour to black. Apply 'Ministring_TEX.jpg' as a texture map and 'Ministring_TRS.jpg' as a transparency map, with Transparency Min and Transparency Max both set to 100%. The end result will look odd in preview mode, but it'll look right once you render the image. I haven't downloaded the black panties yet, but the same method should apply, it's a time-honoured technique for creating posette lingerie. Hope this helps. gps