Does anyone know where i can get a Zaino Car Wax in Melbourne or in Australia? :)

I might give some Swissol a go.

Sorry not to answer the question... :(

Zymol is as good as Zainol in most areas, and better in some.
It makes your car smell like bananas :-) and is more easily available than Zainol in Australia. It is expensive at ~$50 a bottle for the wax, and ~20 for the wash, but since you only wax once every quarter, it's not too bad.