Just for interest's sake, here's a concert music arrangement of "South Australia" by Stephen Leek. Sounds like he utilized the "Rise Up Singing" style in the beginning, but then, notably, he tried his hand at matching L.A. Smith's text to her melody -- with some odd emphases.

http://www.youtube.com/watch?v=PCpIMChCTXQ

It's sounds like at one point they sing something like, "Wish I was on that strand/ with a glass of Foster's in my hand." Pretty silly. But I bet the kids like it...at least it helps them square it as a "fun beer-drinking aussy folk song"!