uh centurion, i'll have to correct you on this one 
the heli's main rotor has two kinds of control, the
collective, and the cyclic. the collective alters the angle of
attack(the bite into the air) of all blades. more pitch, more lift.
the cyclic control alters the pitch of the individual blade. for
example, for the heli to pitch down, the blade travelling over the
tail has more pitch and lift, while the one over the nose has less
pitch and lift. thus, with this moment, the heli will pitch down.
the tail rotor acts as an anti-torque system, or else the heli's
body would spin uncontrollably. excess tail rotor thrust is used as
a rudder.
the jet engine does not propel the heli forward. this in fact is
bad as the heli has to hover at a awkward angle in order to counter
the engine thrust. most helis have exhaust systems that that go
toward the side so that no thrust will alter the flight
characteristics. besides, the residual thrust of the turboshaft
engine is quite low, not enough to propell the heli. the heli flies
forward(or backward and sideways) by altering the cyclic controls.
pitch the heli's nose down, and it moves forward. the same goes for
all the other directions.
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