> the joystick itself is working fine on the computer game controller settings.
Is that "computer game controller settings" within FU1, or something in Windows? (I haven't run FU1 for a very long time, so I don't recall its config options; and I haven't run Windows at all since XP).
I'm afraid I haven't a clue how the Windows version of the game implemented joystick support, but if it relied on the joystick being plugged into an RS232 serial port then that's a non-starter for any modern hardware.
Sorry I can't help more. I hope it's something which can be made to work.