Hi, here i will teach you how to find, join, play cracked cod4 servers. 
(Skip step 1 if you already have x-fire)
1. Download x-fire Here Or here, install and create a account.
2. add some friends: click on extra's next to xfire, and click add friend.
3. now go to: GameTracker.com and click on the search bud and select cod4 game and search for the word: cracked
4. click on a server and copy the ip, go back to xfire and click on the 2 computer icon's click right mouse bud and click add custom ip, paste the ip in the ip box, go back to youre browser and copy the port and go back to xfire and paste it into the port box, select call of duty 4 multiplayer and click ok, click 2 times fast on the server you added and cod4 will start and it will go directly in to the server (This will Work for more Games)
you also need the cod4 patch 1.6 and 1.7 installed, you find it here:
FileFront:
Download COD4 1.6 Patch
COD4 1.7 Patch
GamersHell:
COD4 1.6 Patch
COD4 1.7 Patch
And you Need For singlePlayer a No Cd Patch:
Here you can find everything: All No cd Patches And private server fixes.
And here only the 1.7 No Cd Patch (MegaGames) : Here or Here
GameCopyWorld.com:
Select COD4 1.7 Patch here
Have Phun 
