1) If your reference is contacted, is that usually a good sign that you are going to get an offer to start training in Melbourne/Brisbane?
id say so, but its not a 100% gurantee
2) If the answer is yes, how long after references are contacted does it usually take ASA to get in touch to inform you of course dates.
I cant remember exactly, but it certainly wasnt straight away. At least a few weeks. Some were quick, some were long. Fact is, you will have to be paitent about the entire process, i applied in 09 and am only just finishing up final field now.
3) Were people given a choice of enroute or tower, or were they just told which stream they would be entered in to?
I was given a choice, however not everyone was.
I chose enroute becuase i wanted the security of knowing where ill be working for the next 30 years.