How do you install cheat for counter strike condition zero

you can activate cheats by typing sv_cheats 1 in consol (`) and you can use cheats then if you are talking about the hacks to be used online you will have to download them many of them carry virus and are out dated because Valve keep their VAC (valve Anti Cheat) Security system updated every month and you will get banned from the game online play and you will have to make new steam account and repurchase the game.