I'd say people should just head straight to the Creek unless they're coming from another town. You'll want to get scrutineered as early as possible to get the most runs done as you can. When you get there drive along the road to the back entrance and go into the shed to register. Don't forget to bring your rego papers, licence, helmet and $33. If it's not your car also bring a signed letter from the owner stating you're allowed to drive it. Wear long sleeved non-flammable clothing as well.
People will be able to meet up in the lanes after scrutineering. Another tip, food there is generally horrible and expensive so bring something to eat if you can.