Hi Duncan
Are you doing a three star alignment? And making sure one of three is on the opposite side of the meridian to the other two? Your first alignment star will usually be well off (outside the FOV your finder, or it was when I tried it with my EQ6) but the next two should be pretty close. The aim is to draw a big triangle around the part of the sky your are viewing/imaging - if you knew this my apologies for pointing it out.
Also, you bought the mount from someone on the forum, is he in Canberra by any chance or do you need to adjust the lattitude on the side of the mount?
I've made these suggestions on the assumption you are entering lattitude and longtitude correctly as well as the date in the correct format on the hand controller.
That's all for now please report back

.
Wayne