I have the original Tie Fighter Games on and old PC, I have recently purchased the GOG version for my Laptop and I would like to configure my Joystick Logitech Extreme 3D Pro for this game however, I cant find the Config Menu for this and can only find the KYBD option in game.

Is there a way to access full configuration so i can assign Throttle and Buttons.

Any help is much appreciated.

The DOS version of Tie Fighter should start with the joystick calibration routine but you can always invoke it with Alt+J if my memory serves me correct.

As for configuring joystick buttons you can make a profile for Tie Fighter's Dosbox.exe with Logitech Profiler.
There is no way to configure keys and buttons in the game other than Dosbox own mapper Ctrl+F1 but that is rather cumbersome to use.