editor wont load as mdx

i have a few models i got from this site because i thought it would look cool. well i figured out how to import them into the editor but when i test the map the units are invisible. i think i know whats wrong, just not how to fix it. when i create a custom unit i change the model file to what i want it changed too. the problem is when i import the mdx file it changes to an mdl file and wont load it. when i change the file ext to mdl its invisible ingame. help.

the game automaticly changes them into mdl that is not the problem. your problem is probly that you have the paths wrong. Make sure you take off wc3imported\ from the paths and if that dosen't work try adding textures\ to the blp file.