Tested and working fine. Only issue is I'm getting no forcefeedback in game. I couldn't tell you whether this is a fault of the launcher or of FS Open, I have half a mind that my force-feedback hasn't been working in all the time I've been using FSSCP stuff, but I haven't paid much attention to playing the game, but more getting various 32bit textures and HW T&L running contently. I'll do some prodding and get back to you on this one.
The registry entries seem to be present anyway, and the joystick does work as far as all the buttons and axis movements are concerned:
Joystick: Logitech Wingman Force USB (Latest WinXP drivers installed)