they locate on the sleeve nuts yes, but if i were to tighten them up, they would try to bend the centre of the wheel in and/or break the fins on the drums because the fins are the only thing the wheel is touching. Well dodgy. The fins stick out much further than the bit with the wheel studs on.
Its like the drums are just the wrong contour for the shape of the back of this type of alloy wheel .
Tried a Turbo Vec,

that fits ok (just) but its only 14 inch which means having to buy four new 14 inch tyres for a start, and I only just bought four new 15s !
Also, do you think 14s look a bit small on a car this size?
Got a set of 15in wolfies to pick up (cheers Dunc) wonder if those fit any better.