If you are having trouble with calibration in Flight Simulator and your controller seems to be ok in the test screen of Game Controllers; then you might need to rebuild the config (cfg) file:
To rebuild the Flight Simulator config file, firstly press and hold down CTRL+SHIFT, then start Flight Simulator and start a new flight. Continue to hold down CTRL+SHIFT until the game is in Cockpit view. You can then let go of the CTRL+SHIFT keys.
This will reset all the controls in the simulator: so you will need to move the controller in the full range of movement, for all the axis at least 4 times.
Note when you rebuild the config file, some of your joystick settings may change. This should work for FS2002, FS2004 (FS9) and FSX
Technical support telephone numbers can be found here