SOAP client connection proplem - where is a concise reference...

Question

I am using the Microsoft Office 2003 web services toolkit. I have tried it on samples, not problem but now am implementing on a vendor site. I continue to get an error connecting: Using the classes created by reading the client's WSDL file, I get a connection timeout. Their service definition points at a URL that is inaccessible but they have given me a URL to use. I don't see where to change that in the class created. In .NET I've been told there us a URL property for the service. If I go to the namespace constant in the class created by the MS web services tool and change the URL to the one the vendor has given me, I don't get a timeout but it cannot find the namespace definition. Is there a place that I can enter a URL to their service and control that on my end of things? I can't find an MS Soap client reference. Also, within the class there is a wsml string for service mapping. Is there a "type" reference I can put in there to alter the default URL for the service? Any help is greatly appreciated. Matt