I will have to make sure I have a better crack at looking it up next time, I suppose it usually turns up so fast after leaving japan that I don't spend a lot of time worrying about it.
That is a grand understatement
I always get them to charge me at the currency I'm buying from so my card or bank does the conversion, it's always a better rate then. It's not always easy to spot but when you're in Paypal completing the transaction you should be able to specify the currency as options allowed by the seller as opposed to AU$