It seems that ckKnight removed the internal modules and placed them as external addons. Therefore you need the "Cartographer" folder in your addons directory, but you also need "Cartographer_Battlegrounds", "Cartographer_Instances", etc. if you want those modules to load up. Check what's inside the zip file you get. You can find the latest version (or so I think it's the latest version) over at curse now that files.wowace.com has gone dead.