I went ahead and ordered a usb - gameport convertor from Amazon for about half of what I could get the BU0836 for, which seemed like overkill for just getting a single axis rudder pedal to work. Reviews were pretty good keeping in mind that some people would have trouble operating a wooden toothpick correctly.
One guy returned a flight control stick and throttle set cause he couldn't figure out where to plug the cable from the throttle... "my computer doesn't have a matching socket.." Gee I wonder what this socket on the back of the stick base is for ?
Remember if all else fails RTFM
http://www.amazon.com/gp/product/B00...ls_o00_s00_i00
Edit: The adaptor arrived from Amazon and has four mode positions on the switch, each referring to a different combination of axis and buttons. My computer recognized I had another controller plugged in after I connected the pedals via the adaptor. But no matter what I tried I could not get a good calibration and the rudder was always over to the left when "neutral" and no better then at center when fully pressed right. I will try it with my old complete Thrustmaster FCS System when I get a chance just to see how that functions.