FIXED
Did exactly that - ground off the nylok nuts holding the trackball to the plate (couldn't just undo them as the bolts are not actually attached to the mounting plate and the whole bolt and nut turned - grr) GOD I LOVE DREMILS
removed the base of the trackball
swapped the sensors over so x became y.
admired the simplicity and beauty of the gutz of a trackball
put it all back together
cut the yellow and green wires and swapped them around
plugged it back into PC
recut the yellow and green wires and joined them back the way they were
cut the brown and blue wires and swapped them
plugged it back in
VOILA
Even if you do find a software fix.. if you do not have a roller at the top of the trackball, it spins very differently when trying to get it to spin up very quickly. Give it a try and if that doesn't bother you, this fix might be for you as well.
csa3d
I cant remember where the rollers are now but I assume thay are in the wrong place (like left and base instead of right and top) Does this actually affect game play and if so how?
And now to work out this Led Wiz gizmo - that looks confusing....