According to Wade Keller, Chris Candido and Tammy Sytch have been sent home from Nitro. They were asked to leave, when they could not produce written proof they were released from ECW.
They were realesed from ECW, but were unable to provide proof to WCW officials. WCW is still interested in the 2, but are burned by the Sabu situation so they did not want to take any chances on the 2. (Wade Keller, and PWTorch.com)