Here's a link to the apf site, so you can track down some drop zones in your local area. The regulations require you to have 10 hours on type and 165 tt, 100 comand. You also might want to look at CAO section 29.1.0 and your operator should give you a copy of the APF jump pilots manual to read. Good luck and follow the advice above - don't work for free.
http://www.apf.asn.au/apf_clubs/findaclub.asp