Well, thanks for that Jim. I've had pretty much the same results from Google etc.
My friend seemed to be under the impression that this was a fairly well-known song, but it's a new one on me.
I may just buy the Mike Silver CD, which has got to be a worthwhile purchase anyway.
Incidentally, there is a Ewen Carruthers MySpace site, but again with very little real information on it.
Anyway, thanks again for your interest.