Warcraft 3 MODs

I`ve been on various CS:S servers with the wc3 mod on, how have they done it?

I`m a total stranger to this mod thing but I`m trying to set up my Counterstrike source to play the warcraft 3 frozen throne against bots. I`ve installed CS:S and installed AMD Mod 1.8 (as a listen server) and copied all the files/folders from my extracted war3ft_v3.0rc11 folder to the cstrike folde...