I want a Australia domain

I want a Australia domain but it?s not available.
But before I back order it I want to make sure it due to drop soon and not in 2+ years.
But when I try who who it does tell me when its due to expire, like it does for .com domains.
This is all I get.

Last Modified: 29-Sep-2011 0803 UTC
Registrar ID: WAR
Registrar Name: Web Address Registration
Status: ok

Some domain names don't publish their expiration in whois database, afaik there is nothing you can do about it.