Thanks for all the input.
My copilot (wife) wrote down the instructions we were given, but we may have both misinterpreted what was said. Or she may have got it wrong.
Whatever, I will make I understand exactly what is required next time I venture into ATC territory.
I did eventually do a left hand circuit in that I joined overhead the centreline for a left downward, left base for 32. The twin coming in on 14 was clear of the runways before I joined mid field cross wind.
I will now go to the ex QANTAS person and ask him again about these different procedures he talks about.
Mick