Hi Kate! It would be really difficult to ID this rose from just one picture of the blooms and without having more information about it. Any information about how old it might be or when it was planted could be helpful. Also being that you are in Australia there may be many roses that would be available there that we would never have seen here in the states because of the trade problems and vice versa. There is one orange blend rose that I can think of that I believe is available there called Sheila's Perfume. That is only a wild guess though and there could be many others.

Hi Seil - thanks for the reply. I think it might be the case that it will be too difficult to identify...it kind of looks like a Peace Rose to me, but not quite...I'll ask my friend for any more info that she might have.

Maybe SUNDOWNER?

If the color in the photo is true, I would guess not 'Peace': there's too much brown in it. Also the form of the flowers is not overly convincing.