is there an option like in SO3 where u can change the furlongs to metres and to change the betting? Only because i wanna do the AUS

Yes Bentley there is, click on the game, click the start the game button, on your right hand side down you will see a button called "Low Spec" click on that, on the right hand side of the screen you will see the button for the metters you can't miss it, and with the betting, it's on the same page you can select the hard betting side of the game if you wanted, good luck.