Guys I want to apologias to everyone. My rear view problem was the registry fix for the IL2 Linda Blair problem. I have forgotten battles and the expansion pack loaded and TrackIR set its view range to 1 instead of 2.
If any of you are having problems seeing full back with a clear 6 view, go to the TrackIR web site and find the registry fix under the IL2 game tab.
HTC sorry for sounding foolish. Ive done my home work and understand we are just waiting on the next mini update from Natural Point to enable the 90 deg. up. Sorry for the trouble.