I have stfw but I cannot find a simple / standalone way to create a webservice client in java.
Does anyone have a link/sample into this?
How about using Axis2?
Just follow the quickstart guide and you should be on your way.
Here is another more descriptive guide
soapUI is a great tool to test a Web Service. It is really simple to either create a server stub to test your client or just send client request to any Web Service.
One of the most simple ways is to use apache cxf. There is a good documentation to create a client here. You will need java 5, not 1.4!