Using Flow Debugger

[Upayavira]

I'm struggling with debugging a flowscript. I'd like to use the Rhino 
debugger. I've seen the wiki page, and uncommented the <debugger/> node 
in cocoon.xconf.

How does the debugger get invoked? Am I supposed to start it, and have 
it connect to Tomcat? Does it automatically start? I'm confused. I can't 
see anything suggesting how to actually start it.

Can anyone clarify?

Thanks in advance,

Upayavira