Thanks Tony,
I took it to Greensborough Ultratune twice recently and $900 later I have no air con. They said there is a hole in the compressor and they couldn't find another one either from after market or wreckers. They said there was nothing written on it when I asked and they had put it all back. I was furious with them. They told me to go find the part and they would put it in. It's using 134 gas so must have had the exchange.
I don't know much about these things so my cousin Tony who does, says it must be out there somewhere.
Cheers
Suzy