There was a thread here on Waltzing Matilda several months ago, but I can't find it now.However,go to http://www.waltzingmatilda.com/
There you will find more about WM than you probably want to know. I bought the CD and tape they offer, and it was money well spent.
The CD has 5 versions of WM (one instrumental) and the liner notes discuss all the versions.
Bob Schwarer