Urgent help with tomcat 4.0 b5

[TIMBMS]

Hi there
i downloaded Tomcat 4.0 b5 and installed it on my PC running win98. it works
fine but for some reason i get the following error on the MS DOS window when
i start it:

Starting service Tomcat-Standalone
Apache Tomcat/4.0-b5
PARSE error at line 77 column -1
org.xml.sax.SAXParseException: Element "description" does not allow
"servlet-map
ping" -- (#PCDATA)
Starting service Tomcat-Apache
Apache Tomcat/4.0-b5

i get this error ONLY when i add my context to the server.xml... i cant see
whats wrong as i used the same context with tomcat 3.2.2 and it was
fine...here is the context i added:

<Context path="/wap"
                docBase="c:/wapfolder"
                debug="0"
                reloadable="true" >
</Context>

please advise... i give up :-)
thanx
Tim