What, exactly, was in the zip file? There might have been a CR2 file a RSR file (maybe, this isn't always included) a PCF file (this is an encoded version of the OBJ) The template is exactly that, a map of the shape of the garment. If you paint on this in a paint package, save under a different name and apply to the shirt, the image/design on the template is shown on the shirt. Or did you download one of the female T-shirt textures from the free stuff pages? In this case, it should be a JPG - this is applied to the T-shirt as a texture map (from the render menu) Paul