the main rotor on model heli's should spin clockwise when looking at it from the top, and the tail rotor should come up over the top towards the back and then go down towards the bottom and towards the front, counter clockwise if you are looking at the passenger side (as in a car, not as in a real heli =P), and it should blow the air from left to right when looking at the rear.

real heli's are exactly opposite of that, except the rotation of the tail rotor (they do still blow the air the opposite direction though)