Oh bugger.
Yes, there IS.
Use SCP - check out their FAQ thread for installing and using SCP.
In the launcher you can set higher resolution than 1024 x 768.
I played FS_Open at 1600 x 1200.
However your HUD will be out of order - but only partially.
The lead indicator along with the missile indicator will be screwed and all aroung the place, but other than that it's perfectly playable (and breathtaking too...).
Now if you wanted a "game" with smg. more to offer than pure shooting d/ the port - for some reason I kept playing that over FS2.
I have to realise that other than a few good moments FS1 was wastely superior in the overall feel...that's why Derelict coudl own.