FSUIPC for Dummies (Not directly PMDG related)

Hi Everyone,I have a Flight Sim Yoke USB and a Homemade twin engine throttle control. I gathered from the FSUIPC manual I can assign functions to axes. What I want to do is assign the spoilers to the throttle control of the Flight Sim Yoke USB so that accurate spoiler control of the PMDG 737NG is possible and the reversers of the left and right engine to the Prop and Mixture Axes of the Flight Sim Yoke. Is this possible, and does someone have a quick and dirty way of helping me do that, because the FSUIPC menu doesn't seem to be too intuitive for that, and the user manual just confused the crap out of me.ThanksShane Lewis