Mate, just assuming you're talking about Morrabbin, can I suggest you give ATC a call & go over & have a chat with them? I know some of them very well, and they're not that bad!
They'll be able to explain everything & give you lots more hints & tips besides, in what can be a pretty tricky area.
For an extra-special welcome and 1st-class treatment, take doughnuts!
ap