I think the best way to stop the aussies is this:
1. Tackle around the legs, how many times do players need to be told, "you can't run without legs". Our players always insist on either going high, or shoulder charging the opposition, it doesn't work, if you tackle the legs, wrap the arms of the opposition, and then a 3rd comes in just to knock him down, then that is a good tackle. Just remember Dan Belcher at home to toulouse, He tried the shoulder charge, and ended up on his booty, with the Toulouse player scoring a try.
2. Take referee out of the equation. Get onside, or atleast make the effort, stop the backchat, stop trying to rip the ball out, cause as soon as they put their hand on the ball they are going in with the intent to rip the ball out, if a player is tackled right then he can't pass anyway.
3. I know there are a lot of big names out of the team, which everyone is used to seeing, but if this team can stick together, and learn to work together then we could win the world cup in 2013, but they need to gel as a team.
I know This is going to get some stick, like what makes you so sure? or let's see you coach the team better, I am not saying i can do that, but these are things to be looked at.