I know a few people have been after a copy of this catalgoue. There's one on eBay right now:
http://www.ebay.co.uk/itm/The-Auction-Catalogue-of-The-Gold-Coins-of-The-Reserve-Bank-of-Australia-2005-/121493171502?pt=UK_Coins_World_RL&hash=item1c498ead2e