i Just found something on it. This is really amazing technology and i did not know about it untill you all mentioned it just now...
http://en.wikipedia.org/wiki/NOTAR
So it uses vectored thrust for direction similar to how an F-22 uses this to obtian great pitch control.
More on it here...
http://www.aviationtoday.com/cgi/rw/...=0703notar.htm
Its good that we learn stuff everyday.