Do you have an webapp installed, because there is no standard webapp configured in the jboss/tomcat default installation?
If you have, please post your configuration, so that we can help you.
I have a webapp installed that runs fine under localhost:8080. Here are some of my config files. Let me know if you need more.
Added the following to tomcat4-service.xml:
JkMount /*.jsp ajp13
JkMount /servlet/* ajp13
JkMount /mywebapp/* ajp13
Thanks for any help
Correction to above:
JKWorkersFile = "%JBOSSHOME%/catalina/conf/workers.properties"