Some quick notes
wget --no-check-certificate https://opensource.ncsa.illinois.edu/svn/mmdb/trunk/edu.illinois.ncsa.mmdb.web/war/WEB-INF/lib/mysql-connector-java-5.0.4.jar
wget --no-check-certificate https://opensource.ncsa.illinois.edu/svn/mmdb/trunk/edu.illinois.ncsa.mmdb.web/war/WEB-INF/lib/xercesImpl-2.6.2.jar
into /usr/share/tomcat6/lib
also add --pidfile to /etc/init.d/tomcat6