You can still however go into the booking engine (http://oneworldrtw.innosked.com) plan your itinerary and hit "book now" to find the price in local currency.

As an aside; the strong AUD against NZD makes it almost appealing to book a DONE4 ex-AKL than ex-AMM as planned. Taking the positioning flights and time into account; the difference is about 1500$ as per the flight costs that I looked up a couple of hours ago.