next time you post a question you should put the jboss version you are using as part of your question ...
and read this please :
the standard port it is running on is 8080
it is configured
for version 2.4.x with integrated Tomcat-4.x : in $JBOSS_HOME/catalina/conf/server.xml
for version 3.0.x with intergrated Tomcat-4.x : in