ahhh you gotta get a joystick. That's what I learned how to fly chopper on...
and btw...
PRACTICE OFFLINE!!!!!!!!!!!!!!!!!!!!
No offense intended, but nothing worse than a newbie coming in a server, loading up a chopper with a lot of people, and then crashing it before they get off the ground.
Plus, its MUCH easier to play offline...you dont have people with stingers taking you down a minute after you take off....the enemy AI cant shoot nearly as well as real players. That way you can learn how to manuever the chopper without worry of being shot down. Dont get me wrong, they can still take you out, especially if they get the AA tank out on the field...
Practice hovering I will say is the main thing. It'll teach you how to feel the minute movements of the chopper. Try to capture flags witout landing, it'll help a lot.