Hi Mouthomighty,
Thanks for the reply! I believe that Boost is a mobile carrier, here in Australia. As far as I can tell from the Boost website, iPhones are compatible with their network. This means that you'll have to take your iPhone and your SIM card to your nearest Boost location to find out what the go is.
I'm not sure of Apple's policy on sharing external links on this forum, but if you just Google "Boost Mobile Locations", You'll be able to find one quick enough.
If you have any further questions, queries or concerns, please don't hesitate to reply to the thread as I'm following it.
Best of luck!