Robert,
Good to hear that you got the heli smoothed out...
The helis on Phoenix and the real thing can both be trimmed using the trim controls on your DX6i....this takes some practice, and very still air for the real thing....it's hard to hold a steady hover when you are learning, but it's alot easier if there is no wind.
The trim adjustments work on Phoenix just like they do in real life, you could experiment with them on the sim first, with no wind to see how it all works...
Keep in mind to, that all RC helis (real ones too) always drift to one side (in the case of a clockwise rotating main shaft, like the B400 is, it's always to the LEFT) right as they lift off the ground. This is normal, due to tail rotor thrust, and it's called "translating tendancy" it's explained in more detail here;
http://www.rcheliwiki.com/Translating_tendency
Hope that helps some!!
Glenn