Gah! i can't ollie while moving!! help!!!?

I was having the same problem. It's hard to keep balanced while moving and trying to pop the board. It takes a lot of practice, but also, make sure that your kingpin on your trucks is tight enough so that when you bend your knees to pop the board, it isn't impossible to balance. You want the board to be pretty stiff when learning tricks, it makes it a lot easier. Hope this helps!