Confluence is this application. I run it under Tomcat. I don't install it exactly per documentation because I want Confluence to be my Tomcat installation's default application.
unzip confluence-2.1.3.zip
vi confluence-2.1.3/confluence/WEB-INF/classes/confluence-init.properties
confluence.home=/var/confluence
mv confluence-2.1.3 /usr/
/etc/init.d/tomcat restart
