In terms of getting your timetable, I'll give you a step by step that may hopefully help!
1. The BMedRes
course page will be your go to for selecting units, as it will give you the information you need to fit within a major. You would be looking at the drop down schedule for students commencing in 2015 onwards.
In year 1, you don't really get much choice, and as a full time student you would be doing 4 units, and take the compulsory units for
a) Foundations in Medical Research Major
b) Your desired major
c) Your desired minor.
a) In first semester you will need to do:
either KHB100 or
KMA153
b) In first semester you will need to do CHG105. This applies to any major as they all require Human Biology as a pre-requisite.
c) In first semester you have a choice of either KRA113 for Pharmacology or Pathology Minors, or KHA106 if you are doing the Behavioural Neuroscience Minor.
This will leave you with one free slot for you to choose either a degree elective or a breadth unit.
I recommend having a good look at your options for degree electives and breadth units, and think about what you want to do when.
Don't feel locked into a decision about your minor yet, because you can use your degree electives to change your pathway. If you're
completely unsure about whether you'd like to do Behavioural Neuro or Path/Pharma I'd recommend doing both KRA113 and KHA106 in first semester, one of them as an elective so you'll get the chance to choose later on. With that said, most of the fun units happen in second year onwards, so I would try and save my electives for second year units (but that's just me). Also worth mentioning, is that breadth units are generally 'easier' than most of the units you'll take in this degree, so if you think you'd like a gentle transition into uni, these could be a good start.
2. Go onto
eStudent then navigate to study plans, select your course, and using the drop down menus, you'll need to 'choose' your units (there should be a link somewhere on the right) then click 'add to study planner', and then 'return to study plan'. Back in your study plan, you'll be able to tick the boxes of the units you've just selected and press the red 'Enrol' button. Do this for all the units you need in first semester at least. You can also do second semester, but it's not urgent right now.
3. Finally, go onto the
student timetable page and enter your student number, then select the appropriate info above (Campus, year, semester etc.) I would recommend starting with 'Lectures only' as it can be quite hard to read otherwise when you're first seeing it.
Alternatively, if you're having trouble enrolling for some reason but still want your timetable, or if you want to know what kind of time commitment a certain unit has when selecting electives or something, you can just input the unit code(s) and check that way. Even if you didn't enrol (which you should) you'd be able to check your timetable this way.
I personally would then make a nice neat excel spreadsheet with my lecture times, locations, and practical sessions (It can take a bit of planning to avoid clashes between practical sessions). Your choice of practical and tutorial sessions will be explained close to or in semester, so don't worry too much!
Hope that helps
so annoying! 
