the motor got stuck. slam the door shut a few times and try again. if that doesn't work, take it to the dealership. it should still be under warranty since it's a 02.
Check your window switch and if its not that its the motor. I had the motor on my Formula go out and all it did was click. Go to Murrays i think that is what its called, well there site and they will have your motor. I got my motor for 60 dollars.