Chivas,
Is a bit too late, but:
http://www.realsimulator.com/html/tusba.htmlDeltahawkoz2004
As I remember, the tuto' in Bufalo's is for rewire X-45 throttle with a new USB card (BU0836 or similar).
Article pictures is lost: http://web.archive.org/web/20090528101434/http://www.brewsterbuffalos.com/x45/
X-45 throttle (like Cougar Throttle) is "brainless" have only wires and diodes (matrix) internal,
no circuit controller, it is in joystick base.
If you combo (joy+throttle) still work, but joy lost precision, what people do is remove
circuit from joy and install and throttle base, creating a standalone throttle, and put some
additional switchs, new pots+knobs for trim using previous josytick function. Samples:
(If I remember this last was done by Bearcat).
If you joy dont work anymore (is not seem by Windows), you can rewire the throttle to a new USB controller
(BU0836, DSoO, Arduino Tensy 2.0 (need write firmware).
In this case the best is remove all original wires, leaving only switchs, pots and create a new wiring accord the new controller. Is not difficult, but require planing.
Try understand and use original wires is headache (I find this rewiring Gameport CH, Suncon and Thrustmaster to USB).
Sokol1