Camera Tripod Parts Where Can I Find A Quick Release Platform For My Targus Tripod?

Where can I find a Quick Release Platform for my Targus Tripod? - camera tripod parts

I have a Targus TG-50TR Tripod Customs fifty.
I have my quick launch pad for him, the part that connects to the underside of the device. Of course I need this to use on a tripod.
Does anybody know where I can find a replacement?