Cross plugin interfacing

I am building a plugin that exports XML data on various services provided by our open fire server. The problem I am having is I am not able to use the fastpath plugin from my plugin.

[javac] /home/----/new_fp/src/plugins/jabberBridge/src/java/org/telenetwork/openfire/plugin/JabberBridgeWorkgroup.java:6: package org.jivesoftware.xmpp.workgroup does not exist
    [javac] import org.jivesoftware.xmpp.workgroup.Workgroup;

Is there something special that i need to do with the code or build.xml or something else to get it to find and use that package?