Applying a skin to a weapon

Hey, I want to apply a weapon skin (This one: http://hl2.gamebanana.com/skins/133190) To a weapon I put in gmod (This one: http://hl2.gamebanana.com/skins/105813). How do I do this? I renamed all the textures, and went in XVI32, and changed the texture from v_irifle_(whatever) to v_bluar2_(whatever) but all I get is an error. How do I put that skin on the AR2 I put in Gmod?

bump

You might have more luck in the modeling section: http://facepunch.com/forumdisplay.php?f=40

Also, i’m not sure if you like Youtube tutorials (I personally don’t) but this might help you out: https://www.youtube.com/watch?v=l_vcalYfzxg