i believe he is mounting CWB boots to the slingshot board... unless you just got ahead of yourself and typed wrong nick T. maybe you meant for a converter plate from CWB to convert from 6 inch baseplate to 8 inch?
but yea, i would expect the zeus boots to mount to the 08 ss board too. the 08 boards have inserts for the traditional 8 inch mounting but will be ok for the 6 inch plate of the cwb zeus bindings, only you won't have all stance options available to you without an adapter.
other people have similar problems because of the recent near-universal-agreement on narrowing of base plates.
...or is this describing your problem Nick Bigger? If not can you be more specific about how the boot is not bolting on.
p.s. you may have to grind the bolts down on your bindings, because they may be too long. this is also a common issue when mixing binding and board companys. not all companies have the same depth of bolts/inserts