Hi HT - the usual obfuscation surrounds the presentation of the cash conversion but it becomes somewhat immaterial if the statement on P. 105 is to believed (and it better be correct) -
Current capital structure result of recent asset sales + debt repayment
•Cash balance: A$1 billion (held as mix of US$ and A$)
•Debt: US$105 million (convertible bond face value; 2012 maturity)
ie. they still have $AUD1bn - no other way to interpret that