New to Java

Hi All,
I have just completed installation of Documentum version 6.5 on my Windows 2k3 server. Now on clicking the welcome option seen on my All Programs>>Documentum , i am able to go to the Documentum Administartor. The url of the page appears as it is hosted on JBOSS by default (the Jboss Logo) http://localhost:9080/da/da....(i currently don't have the entire url since i am out of office)

My final aim is to modify the Documentum pages to add functionalities like adding links to web service calls.
Prior to working on Documentum i had the experience of working on Alfresco CMS.where i wuld run the source code , create a build using my NetBeans IDE to create a WAR file inside my CATALINA HOME/webapps folder and run the Startup.bat of Tomcat to launch my application using http://localhost:8080/alfresco

I would like to know how can i launch the Documentum application akin to how i used to do Alfresco (is there a way?).
Are there any particular WAR files of importance in Documentum? Since the source code is not directly available i am quite perplexed as to how to move forward and how to host the application on my Tomcat especially after the experience with Alfresco were quite easier due to the source code.

I am quite new to Java too hence i chose this forum link.I hope i would get some guidance.
Thank You