> The confusing thing for me then is, how do I work on trunk and debug it
> and
> update it etc whilst the workspace is pointing somewhere else, or is this
> a
> RTFM concidering I only installed it today? (I'm impatient, but that's
> hardly your problem). Or maybe, I do need this mixture of svn trunk and
> eclipse ?

You could start Jetty in debugmode and connect from ecplipse to it:
http://docs.codehaus.org/display/JETTY/Debugging+Jetty+with+Eclipse

Eclipse would show you the piece of code actually running in jetty.
After work, commit your changes from the workspace to SVN.

Hope the link helps :-)
Chris