Please help...

I own, started and have created a new (well 8 months ago) website called:

 www.MyPrivateHire.com

I will not shame the person just yet, but an Australian web designer has indescriminantly copied and infringed our copyright on the 21st March 2007 by creating:

www.MyPrivateHire.com.au

This person is promoting this website.

1. It has the same domain name, but with the AU domain suffix.
2. The text on the page is a direct copy.
3. The meta tags are a direct copy.

Please can someone advise what my best course of action is...
Anyones help to stop this person from pursuing this would be really appreciated.

many thanks


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www.MyPrivateHire.com