I just downloaded this skin for the AR2:
http://www.fpsbanana.com/skins/8251
I basically took all the files, not just the folders, I took all the FILES out of the folders and put it under to the models/weapons folder.
The skin is there, but it is entirely pink/purple.
Especially for eX.Tobel, would you know how to fix this? How do I install custom weapon skins for SF?