I have no idea what happened to the rest of this thread. For me it ends here in April 2009 when there was at least another two months of thread. To provide some kind of conclusion to my involvement I offer the following.
In no way does what I say represent an official position as I have well and truly finished my work at the Museum of Australian Democracy. There are too many wonderful Australian songs to think of defining a hit parade and my role in the project was simply as researcher. I did not make the final choice. Thank you for your help and generosity in being involved in this first selection which hopefully is not an end in itself but the beginning of a developing dialogue about the power and beauty of Australian songs.
You may notice there are twenty nine songs because one internationally famous Australian band declined to be included in the selection. These are the songs:

Archer, Robyn    Menstruation Blues
Blue King Brown    Come and Check Your Head
Bogle, Eric    And The Band Played Waltzing Matilda
Carmody, Kev    Cannot Buy My Soul
Cox, Kerrianne    Beagle Bay Dreaming
De Bortoli, Lucia    [trad] Mama Mia Don me Cento Lire
Hewett, Dorothy and Mike Leyden    Weevils In The Flour
Hicks, Peter and Geoff Francis    One day in October
Hunter, Ruby    Down City Streets
Luscombe, Jack    [trad] Sam Griffiths
Mazella, Kavisha    Love and Justice
McCormick, Peter Dodds    Advance Australia Fair
Midnight Oil    US Forces
Mills Sisters    Waltzing Matilda (Wadjimbat Matilda)
O'Loughlin, Tim and Angie McGowan    No dams
Palmer, Helen and Doreen Bridges    Ballad of 1891
Randall, Bob    My Brown Skin Baby
Reddy, Helen and Ray Burton    I am Woman
Slim Dusty    When the Rain Tumbles Down in July
Sloan, Sally    Ben Hall
Small, Judy    Mothers Daughters Wives
Storer, Sara    Land Cries Out
The Herd    The King is Dead
The Saints    Stranded
Warner, Dan & Dastey, Sally    Anthem
Warumpi Band    Blackfella Whitefella
Wiggan, Roy    Bardi Ilma
Wright, Lola and Ruth Shepherd    The Equal Pay Song
Youthu Yindi    Treaty

You can hear these songs in the Living Democracy gallery at the Museum of Australian Democracy, Canberra.