Brand New Tubular but broke the valve stem

I just got a set of new Vittoria 320tpi tubies. I accidentally broke the little threaded screw on valve stem thingy. Is there any way to get this repaired? I unscrewed the top to inflate air, but accidentally broke it off when removing the pump.

Any help is appreciated.

Chris

The valve is replacable on Vittoria tubulars - just the core for the 290tpi or the whole stem for 320tpi

http://www.vittoria.com/index2.php?option=com_docman&task=doc_view&gid=472&Itemid=71
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Thanks a million!!