OK, for a start, what on Earth does it have to do with the US what's going on in Australia or Vanuatu?
"Sharman Networks may indeed have reason to be confident. In a case in late 2002, a Dutch court ordered Kazaa to shut down. The Kazaa "network" continued to operate despite the ruling, only temporarily suspending downloads of the client software. A Dutch court of appeals later overturned the lower court's decision, so Kazaa's back in business...."
It certainly never stopped me from using Kazaa. You could not download the software from the web site but that was about it. And Kazaa is now running stronger than ever, its daily useage far outweighing Napster at its peak. I could be wrong, but I can't see Kazaa shutting down overnight.
More here. And also here.