Check your web.xml file that should be available in the root of web-inf. You'll need to look at servlet mappings to ensure that any requests made to "/servlet/myServlet1" are appropriately routed to the instance of your running servlet:
Hope this helps! See Sun's Servlet Spec for more information (war files). Cory Wilkerson
For Tomcat 4.1.1? they made a change in the defaults so that /servlet/yourservlet doesn't work. I recently found a nice tutorial on getting Tomcat 4.1?? working at Tutorial at Moreservlets. See item 3 under Configure Tomcat which discusses the "invoker" servlet. Bill