WebSphere® ESB is built on WebSphere Application Server, which you can use to deploy and manage WebSphere applications.
For full information about managing applications with WebSphere Application Server, see the information center and PDF books for WebSphere Application Server Version 6.1, available on the library page at http://www-306.ibm.com/software/webservers/appserv/was/library.
If you are using the WebSphere ESB documentation plug-ins in your own local information center, you can also add the Application Server documentation plug-ins into the same information center. You can download the documentation plug-ins for WebSphere Application Server Version 6.1 from the library page. For example, IBM WebSphere Help System plug-ins: WebSphere Application Server Network Deployment, Version 6.1.