Sport850's solution of pulling on the tire (I gave it a few thumps with a malet as well) worked

- I must admit that I didn't have high hopes of success with this method.
Once I removed the stud it was obvious that this isn't the first time this has been a problem. The back of the stud had been tack welded to the hub, but this weld has since failed. Pulling on the tyre either engaged the last of the splines or made the rough edge of the weld catch and hold.
Anyway thanks for all the help.
Now where can I get new hubs and studs in or near Canberra?
And how do I tell what type of Disc brakes I have (8.4s or S brakes as mentioned by Kevin a.k.a. Dr Mini above)?.
Hi Phil...you could try Classic Motoring out at Fishwick (Anto works there I fink)....by the by...the ACT Mini Car Club meets tomorrow night in Deakin...come along and get some more advice