I downloaded Apache Tomcat 6.0.2 And created a new server in Eclipse
Launch your eclipse Run as administration:
For that right click on eclipse-----> run as administration.
It works.
If it not works then again do same and then follow these steps:
In Eclipse, right click on server --> Properties --> Click Switch Location --> Apply-->Ok
(This will switch the [workspace metadata] location to the installed Tomcat location.)Then go back to server, double click it. This will open Overview tab. Under this tab goto -->Server Location --> Select Use Tomcat Installation combo box.
Now close it, save it and try run your server and then rerun the URL.