This week's book giveaway is in the OCPJP forum. We're giving away four copies of OCA/OCP Java SE 7 Programmer I & II Study Guide and have Kathy Sierra & Bert Bates on-line! See this thread for details.
There is no single WS version. WS are implemented using a variety of standards, each of which has different versions. Commonly used are SOAP 1.2 with attachments, WSDL 1.1, and WS Basic Profile 1.0. Those also happen to be the ones supported by J2EE 1.4, which is what the SCDJWS exam is based on.