This week's book giveaway is in the Mac OS forum. We're giving away four copies of a choice of "Take Control of Upgrading to Yosemite" or "Take Control of Automating Your Mac" and have Joe Kissell on-line! See this thread for details.
You use the WSDL file to get the service stub but in this case you already have the Service available in your application container. Anyway I think you can open the WSDL file in your browser by appending "?wsdl" to the service URL.
I hope this helps.