OK, I'm a dope. I'd read some threads at T-Nation that seemed to say that although you couldn't import HOT-ROX Extreme for sale in Australia, it was OK to import small quantities for personal use.
That may be if you contact Customs (customs.gov.au) first and apply for permission, but I just went ahead and ordered a bottle. It got seized at the border and so now I have neither the money I spent or the HOT-ROX and I am both sad and slightly chubby.
Don't make my mistake, kids! Make sure Mr Customs approves your intense supplements before you order them.
This Has Been A Public Service Announcement.