There's a lot to take in during the first few weeks of Uni - some things more important than others. Be sure you've got the essentials sorted out before you go any further. A campus map will come in handy in the first few weeks of Uni when you have to locate buildings and rooms to attend lectures and tutorials.
Campus maps are available.
Enrolment Student Liaison Officers at the Student Administration Office can help you with enrolment, any variations to your subjects and other course administration matters. There is a Student Liaison Officer for each School of the University. The Student Admin Office is the place where your student record is kept - which is the record of all documents submitted since you first applied to study as well as copies of the University's correspondence to you. Always keep Student Admin informed of any changes you make to your contact details, and if you ever experience any progress difficulties with your subjects, make an early enquiry of your Student Liaison Officer. Taking action on any enrolment matters prior to the March or August HECS census dates is a very wise thing to do.