Right click on CDmage, press "run program as administrator". Then go to "File" and press "open". Then select your Tekken 3 iso image with CDmage, before it opens it will ask you for image type, so select the 3rd one down and press open. Once it's open go into session 1 \ track 1 in there you will see TEKKEN3.BNS, right click on that and press "Import Files" and select the TEKKEN3.BNS in the file for the skin you downloaded. That's all!