The exact same thing happened on the feathercoin forums. Most of the victims have joined forces and they're about to take legal action.

http://forum.feathercoin.com/index.php/topic,7292.0.html
http://forum.feathercoin.com/index.php/topic,7176.msg55779.html#msg55779

Someone here needs to step up and take the lead like mhamilton and kevlar.

Best of luck.