In other to get a good free kick, you must stop the meter at the green spot and the ball must curved to fool the keeper. There is no need to bend the ball, because it bends itself. If you bend it, you will miss the goal. The meter must stop near the green spot. Just aim the ball by the side of keeper slightly to the right of your screen. There is no need to bend the ball and take the free kick. Try this in practice mode.

To score a free kick, put the target in the top corner of the side of the goal that the wall is standing in front of. Make sure that you do not press Spin and that the spin target is in the dead center of the ball. Put a fair amount of power in, but do not go near there. Also, make sure the accuracy is in the middle of the green. The ball will shoot over the wall and into the top corner.