I saw those sites before also. I never found anything where you can report online fraud, online to the AFP.

I looked at the NSW link as that is where I live.

http://www.police.nsw.gov.au/community_issues/fraud_prevention

It is more fraud prevention advice and to dob in anyone you know who commits fraud.

Doesn't even mention online fraud (seller/buyer transactions), and in what way a person would be best  contact the police if that happens to them.

That link certainly isn't a substitute for the previous online fraud reporting site based in QLD (that doesn't appear to be current now, not Australia wide anyway).