If you are using the MyEclipse Tomcat, you need to add a directory and/or jars from the configure menu. I’m new to MyEclipse and can only speak for version 6.0. One way (not the easiest) is to go to the MyEclipse preferences ->Servers->Integrated Sandbox->MyEclipse Tomcat 6.0->Paths and append a jar or directory to classpath section. Do not add to the <me install dir>\myeclipse\eclipse\plugins\com.genuitec.eclipse.easie.tomcat.myeclipse_6.0.1.zmyeclipse601200710\tomcat as was recommended.