Ive made some new skins but I can get SimShow to load them. What am I doing wrong?
The problem is not your new skins, it’s that the SimShow program is really worthless and you should not try to use it. Create your new skins (using the method outlined above perhaps) and test them by running The SIMS and creating a new character. The only thing SimShow is good for are the example skin files that come with the program, which you can use to study and/or modify to help you make your own skins. (They are in the SimShow/GameData/Textures directory, or you can now download only the skins.
The problem is not your new skins, it’s that the SimShow program is really worthless and you should not try to use it. Create your new skins (using the method outlined above perhaps) and test them by running The SIMS and creating a new character. The only thing SimShow is good for are the example skin files that come with the program, which you can use to study and/or modify to help you make your own skins.