Contact the xssed staff through contact/\xssed.com (replace /\ with @).
And subscribe to our Early Warning mailing list to receive alerts by mail.
08/05/2011 Note that we are still reading old emails.. We are really sorry for not answering and thanking everybody (especially administrators notifying fixed XSS..). We are also sorry for the delay. But we will surely get back to a decent timeline in the next few weeks.
Also expect various changes on the website and a better way to contact us and getting answers from us..