Hi Ellisa31,
I can only comment on my assessment but one year part time was not deemed suitable. As stated on my results "The Advanced Diploma in Special Educational Needs, Leeds Met University as a one year part time qualification could not be considered towards the assessment. AITSL can only consider formal qualifications comparable to the educational level of an Australian bachelor degree or higher that require at least one year full time study".
I enquired about what courses I could do to ensure I passed AITSL but they were reluctant to give me any advice in that regards.
For teaching in Australia you also have to have a four year degree and 45 days certified teaching practice. This is non negotiable.
If SEN teacher isn't where your interest lies there is a definite shortage of Early Childhood Teachers. I don't know what the requirements are for that however but an option possibly if you haven't started study!