If you're new to jetty, please see Syntax Reference to get a good grasp on how the jetty configuration file works.
It's cute that you stuck the default config file in here with some highlighting, but how about some actual explanation? Know what would really help? Examples. Actual XML examples of how to setup a servlet or a webapp. I'm on DAY 3 of trying to get anything at all to work. Now I'm going back to tomcat.