For future reference you can now dispute domains legality and get them taken down by using the following.
<a href="http://registerfly.com/info/dispute.php" target="dispute"><font color="#80ff80">ICANN DISPUTE POLICY</font></a>
I got this link from registerfly, but most reputable domain registrars follow this practice and have a dispute TOS policy on signing up for a new domain name also
Your copied members section is much less use when you can get back all of the stolen traffic by forcing this domain name to be transfered to your company/yourself for little more or less than a standard domain registration
You now say you've got the site shutdown... So now dispute the domain name and help prevent this name being used again to steal your traffic, while also getting back some of what should be rightfully yours in the traffic that already goes to the domain name he registered that is yours but with hyphen.
Hope this helps for now and for anyone elses future reference
Later, RIPP
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