I know the answer now…

see:
http://ni2.infochoice.com.au/banking/learn/glossary/homeloans/default.asp
http://www.anz.com.au/Australia/channels/Promotion/HomeEssentials004/homeloan_1.asp
http://www.sydneyloans.com.au/comparison-rates-mislead-and-confuse-borrowers.htm

Apparently “comparision rate” is Aussie for AAPR

So, AAPR is an expression of the cost of a loan taking in to account fees and so on over the entire length of the loan period. It will usually only relevant to a particular amount, typically $250k.

Hope this helps others!