don't worry about it, iF-18 was so buggy that it barely ran on the operation system it was intended for, let alone any other!
I tried to get it going, but even on a rig made for old games it would crash constantly. It's a shame, because "on paper" it's a great sim... big manual, dynamic campaigns, clickable cockpit, jane's style user interface, training; there was even a greenie board.
But of course none of that matters if you can't go more than three minutes without a ctd! Really too bad, but my advice to anyone tempted into trying to get it going would be to stay clear.