Arc reception at the blockhouse. They probably have them at their stall during O-week as well. The diary (this year and last year) didn't come with that wall planner though, you probably have to ask for it separately.
You have a lot of time in between classes which is why your timetable looks pretty bad. If you can rearrange them so that they run consecutively/with as few gaps as possible then you'll spend much less time at uni, but I'm not sure if that's doable for your classes. Did you use...