Right click on the drawing name and click on Edit Drawing Settings.
Set the co-ord system you require (i set the Victorian one so i got all of Victoria to show not just the MGA-55 Zone.)
Make sure you are signed into Autodesk 360
Then in the command line type in GEOGRAPHICLOCATION
Set Location from - Select MAP
You will get this form showing up in Civil3D
Type in the Address required at the top (make sure you add what state and country you are in)
It will then zoom to that address for you
Then click on the next button at the bottom right
Select the GIS Coordinate System you want - in our case here we want GDA94, VictoriaGrid
Make sure you set the right time zone and click next
The GeographicLocation will ask you to select a point for location (It seems if you hit enter on the keyboard, it won't add the pictures), draw a line with the co-ords required at the end of the line and click onto the end of that line to get the correct coordinates for adding the picture to civil3D
In the command line make sure you type in 0d so the data comes in up the right way.
Now you have all the tiles for Victoria showing in the correct position.
As you zoom in and out the clarity of the image will update and be nice and sharpe unless you have zoomed in too far.
When on the Geolocation Tab, you can change the view from Map Aerial to Map Road, Map Hybrid or Map Off. Have a look and see what you think.