Um your HSC completion year says 2006 so we are on Study Vac from now until the start of the HSC exams and then we only have to go for the HSC exams.
If you like many here filled in the wrong HSC completion year then you should try to ask someone from your school or visit their website. However I believe most schools go back tomorrow (Monday) being term four (I think) for most if not all schools doesn't have a pupil free day.
Since your offline this was probably answered a bit late but answered all the same.