which the application server you want to use?
you can use a application server is defined in default and configure for ejb  (in tools->configure server)
jbuilder is automatically create the jar file for deploy  the project.

To deplot Enterprise beans, you should use an Application Server such az JBoss , Weblogin , BES , Websphare , .... .So you should refer to the application server document for ejb  deploying. alo , there is some "Application server independent" activities that you should do for creating and deployinh ejb such as creating ejb-jar.xml file. These activities are related to ejb specification and you should refer to ejb specification documents that Sun has published.