Since you are using JBOSS and TOMCAT bounded verion, there is no jboos directory under your installatin directory. Go to /bin directory and type run.bat/run.sh, you will start both TOMCAT adn JBOSS. All configuration infomation is stored at server/default directory. You can simply hot deploy your .war, .jar or ear by dropping them inside server/default directory. Remove them for undeployment. You can also access JMX console by http://localhost:9080/jmx-console.
Hope this helps.
To be more specific: server/default/conf directory store core Jboss configuration info. server/default/deploy is the directory to deploy you J2EE application