You have to use "lever_throttle0" for 1st engine,"lever_throttle1" for 2nd engine and so on.Only four engine available.You find it in "aircraft keyframe animation" (press F2 ->  Part Name -> Browse... )

You have to animate it in the following way :

Keyframe     0 : full throttle
Keyframe   50 : idle
Keyframe 100 : reverse ( if reverse not available on the plane,I used to set this frame for idle,same as the 50. frame)

I never compiled a plane for CFS2,only for FS2004,but i think it use the same part names.

I hope it will help

thats a shame.

Two versions it is then, combat sim and civi sim.

Thanks

Stiz