Placing servlet in Tomcat

Hi,
I have a servlet package say test.web. when I paced in
C:\jakarta-tomcat-4.0\webapps\ROOT\WEB-INF\classes\sl314\web\hello.class, it works.
But how can I open a dir say Hello_dir under C:\jakarta-tomcat-4.0\webapps\Hello_dir instead of under ROOT?
ie.C:\jakarta-tomcat-4.0\webapps\Hello_dir\WEB-INF\classes\sl314\web\hello.class.
Can anybody help?
thanks
andrew

1. I have now C:\jakarta-tomcat-4.0\webapps\mysl314\WEB-INF\classes\sl314\web\Helloservlet.
I put the following in the C:\jakarta-tomcat-4.0\conf\server.xml
<! mysl314 -->
<Context path="/mysl314" docBase="mysl314" debug="0"
reloadable="true">
<Logger className="org.apache.catalina.logger.FileLogger"
prefix="localhost_mysl314_log." suffix=".txt"
timestamp="true"/>
on running C:\jakarta-tomcat-4.0\bin\startup.bat, tomcat did not start, looks like something is wrong.
Is there anything I am missing here. Or did I put in the wrong place inside the server.xml?
2. which web.xml should I use then?
is it C:\jakarta-tomcat-4.0\conf\web.xml or C:\jakarta-tomcat-4.0\webapps\mysl314\WEB-INF\web.xml ?
thanks

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