fit! fit! fit!...make sure the bike fits! i cannot help much on the proper positioning but there are plenty of girls here who could...i was fit by a lbs (local bike shop) owner who is trained in the art of "fitting" he is also a well-trusted friend who has happily taken many $$$$ in exchange for some neat cycling parafanalia...
anywho here are a couple places to start while the pluthera of info comes flying in from the TE gals at this site...
http://forums.teamestrogen.com/showt...t=bike+fitting
http://forums.teamestrogen.com/showt...t=bike+fitting
good luck...and pedal on!!!!
I am a nobody; nobody is perfect, and therefore I am perfect.