BTW, I've filed a formal complaint with his ISP, which happens to be at:
address:      iiNet Limited
address:      Level 6, Durack Centre
address:      263 Adelaide Terrace
address:      Perth WA 6000
These companies tend to take these things seriously because of the legal implications.
It looks like a dialup account and there's probably a limited amount of harm we can bring to this scum directly, but I'll keep an eye on this. Thanks to those who emailed either directly or via the Report Function... I was out late last night and just missed the fun. 
 
Pornographers, spammers and internet virus-writers should be publicly executed... 

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