Chosen Few wrote:
In order to upload a texture along with a model, the texture image must be in a format that SL can use (TGA, BMP, PNG, or JPG), and it must be applied to the color channel of a material on the model, so that the COLLADA file can reference it. As long as the correct reference is there, the uploader will be able to grab the texture file.
Ah, thank you. That's so easy! I know it was a pretty silly question but I just coudn't find SL's requirements for this in plain words anywhere. Thanks for the link as well.