I am sorry, but the debugger is currently (version 0.5) limited to debugging xmlrpc and jsonrpc services. That's why you see the name of your target server grayed out in the right column.
The next version, due for release before the end of the week, will support debugging ezjscore webservices too.
For soap debugging, you will most likely have to wait until version 0.7 or maybe even later...
Principal Consultant International Business
Member of the Community Project Board