Are you going to complete your degree in Semester 1? If you just accepted your offer and haven't even started your degree you will most likely not be finishing during Semester 1.
The form I used redirected after I set a password, so I wasn't given a username/student number. All I have is my UAC number and the password I created.
It worked for me, Comp Sci @ UNSW. I created a password, but then it sent me back to the first page without giving me a userid. So now I can't create one (it says I already exist) and I can't log in cause I don't have the username. Argh.