ok, i've been able to do it in the past, but for some reason i can't quite get the adjustment right (i bought a new cassette and chain).
so to adjust the system:
first set the cable length - does it matter what the front deraileur is set to? and does it matter is you "zero" on the smallest or biggest cog side? (i have regular, not rapid-rise)
then for the limit screws: which one goes to which? and how exactly do you know to set them? if i remember right, there is one screw that limits the max and one that limits the min --- so this means that the limit screws have no effect when the middle cogs are used?