Call of Duty 4 PC?

I have recently gotton Call of Duty 4 on my PC and i had some few simple questions. i was wondering if it was possible to play with a controller. Also i was wondering if it was possible to play with people who have the game on xbox live? And most of the time when i play i have trouble finding a game to play because there is no matchmaking just "find server" and most of these servers always have anooying messages pop up.

Call of Duty 4 PC?
i completed the game on single player dude its the best first person game i have ever played play it its awesome u get to play different level different missions,also the story is great at the end u gotta kill the main lead negative character with a single pistol.but the best part is when u kill him it feels like ur r watching some kind of a movie or something great story and great game........
Reply:You should be able to play with a controller, try using the xbox 360 controller it has a usb port that you can plug into your computer.
Reply:you can play with a controler but you cant play with xbox live
Reply:you can't play people with xbox. you can only play people who have it on pc
Reply:You can find online/multiplayer COD4 servers and games through a game service such as GSC: http://getgsc.com/ or game tracker: http://www.gametracker.com/