I am new to servlets.I have installed eclipse juno and installed Apache tomcat 6.0 in it.I wrote hello world in servlets and tried to execute it.I end up with http-404 error.I have oracle database client at 8080.So i changed the connector port to 8081 in config.Still i find in the eclipse console that tomcat is running on 8080.I am clueless as i am new to it.
Sometimes I get this error also."several ports(8080,8009)required by tomcat are already in use.

Can someone help me?