Hi np,
Most helis will tend to veer to the left during take off. You can add a little right aileron stick during lift off to make up for this. As for the heli wanting to go backwards, make sure that the C.G. is correct (as per the manual) and then if needed, add a little forward elevator pitch control trim.
Ray's heli tech DVDs are said to be very good. See more on this here;
http://www.rcuniverse.com/forum/m_6060921/tm.htm
Good luck and good flying!