Check out the 'Astral Projection' links in the Tutorial forum, the resources these lead to ( in particular the downloadable e-books ) are a great help in clarifying the right steps to take.

Trying this all myself atm, I have to warn you it can all be very disconcerting when it starts to 'work' ( never succeeded myself as I chickened out, I could feel all the energy rushing up through my body and my heart was beating at an insane speed, as a first experience it all just proved too much for me )