Your model wont show up? Odds are its becaue a file path is wrong. Since its your model, you should have an .mdl file of it available. Look in thae file, do a keyword search for "textures" and you will get the file paths for each .blp (skin) file needed to compose the model. If any of the paths are wrong, off by even one character, the model will not show up. WHen you upload a blp file into the map, ensure to replace the "war3mapimported" with the correct file path (i.e. units/textures/YourSkin.blp).
-VGsatomi