I downloaded these Australian files last week and updated to V32 and 2010 maps.
System update v.32
Maps Disc Australia / New Zealand. v16
You should end up with 4 files.
To update to V32 burn the cue file NAV_SW.cue to a cd or dvd.
I used ImgBurn which is free and works well. Insert the cd/dvd into the Nav system and turn the key to on.
It will detect software, the screen will go black for a min then come up with updating ect will take a bout 2 mins and then reset itself. Eject the disck and you are done!
Burn NAV_DB.cue file to a dvd to get V16 Maps. Again used ImgBurn - you want to burn as slow speed as possible to reduce errors and gps lag. Also use a decent dvd.
Insert the dvd in to the Nav system and enjoy.
If anyone has problems I could burn these for you for like $10 which will cover the dvds + postage.