The first text file contains over 3700 emails with other personal information, which has now been processed by ozdc.net so you may use that to check for breached accounts.
AAPT is one of australias largest internet service providers (ISP). They suffered from attacks in july 2012 that was a result of a hack on well known Melbourne company melborneITWikipedia Link: http://en.wikipedia.org/wiki/AAPT
About an hour ago we did a small report on the first part of the partial leak then followed by another article about the first 80mb leak. Now they have just announced a further 268MB of data which comes from two CSV files. The data appears to of been censored so no major personal information has been leaked to the public although they have left some minor personal information in one of the files.