Carl,
I looked at the servo arms on my CPP and they are basically level, 1 of them is not perfectly level but it flies fine. If your servo arms and swashplate are basically level and your heli flies fine, I wouldn't worry about it.
Gene,
Here is a link to the site where I bought the Hughes MD500D fuselage
http://helihobby.com/html/scale_helicopter.html Half way down the page is where most of the CPP fuselages are. Every fuselage they have will tell you what heli they are for, most of them are for bigger heli's like the T-Rex and others.
Heres another link for scale fuselages for the CPP and others
http://www.helidirect.com/index.php?cPath=59
The G3.5 is a great investment for new pilots, I also have it and has helped very much.
Franz,
The idle-up should only be activated when the heli is in a hover. I believe the idle-up gives the heli a constant rotor head speed for 3-D. Before you plug in the Lipo battery for flight, check to make sure the idle-up switch is pushed away from you.