If you used the Widescreen trick posted on these forums, and your interface is still cut off, and you have a 16.9 monitor/tv... go to Microsoft Games\Freelancer\DATA and Open Camera.ini. Change the second line to:
Fovx = 68.88
Load into the game and it will be cut off... just undock, and It should be fine. Worked for me. Thanks goes to Richard_Rahl for this.
check the next few pages sir, of the top of my head there are 2 threads on here about this with nearly this exact name, the one is a writeup i made that has things explained as best as i could and there is another one that another member here made that uses another users writeup for resolution around 1650x1020 or something like that.
heres mine http://discoverygc.com/forums/index.php?showtopic=35685
heres Linkus' thread as well http://discoverygc.com/forums/index.php?showtopic=22630