It is unclear why and how you have chosen Eclipse for the "client." The client of a web service is another application.
You should engage with someone with knowledge of what this WTP thing is and figure out how it relates to the client application that calls the web service.
Axis2 is not a good pick for beginner's. I suggest that you look to Axis1. This is a simpler implementation which makes it eary to learn with. The strength is in the service itself. Axis1 implements and provides all of the services required by the
SOAP Engine API. This includes complex handler support for WS-Security, XMLSignature, and the other relevant service-based API.
There are no modifications to any of the Tomcat configuration files.
Your best bet is to learn how to develop web service client code with straight Java classes/objects. Once you understand this, you will not be confined by a tool such as Eclipse.
[ November 20, 2008: Message edited by: James Clark ]