NPC Installation help.

I am trying to get an npc pack to work for gmod. I recently bought the game and don’t know what I am doing wrong, can someone please tell me how to get this pack to work? http://www.garrysmod.org/downloads/?a=view&id=47272 this is the url for the pack.

Place the Lua, Materials, Models etc. in your main directory. There is an FAQ in the top of Help & Support.

Ok, so I put the files in garrysmod/garrysmod and the npcs do not appear in the npc roster BUT I do get the ragdolls when i look in my all folder for them. Anything else I could try to get working NPCs?