COD 5 CUSTOM ZOMBIE MAPS\cant find folder "mods"???

I have Vista.I downloaded zombie map (dead sand elite) from mapbarracks.com and I dont know where 2 put it.It says that I need to put it at C:\Users\YOUR_PROFILE\AppData\Local\Activision\CoDWaW\mods\ but when I go to appdata it shows only empty foledr.I tried search start but founds nothing.I went to directory and there also wasn't that folder.I also have CoD 4 and that folder (mods) is located in game dir.HELP AGAIN???ThX

That founder appsdata is hidden.. You need to go to tools and click all folders, something like that.. Show hidden I think.. Then you can do it