Check my reply to: Web Access to JBoss 3.0 Template Project.
It looks like my other replies are invisible. So I'll answer again here.
1. In your /template/ant.properties file make sure you have removed the comment character on the last line and set the servlet-lib.path for your environment.
2. Run Ant to create a .war file in your deploy directory (server/default/deploy).
3. Open browser and enter following URI (note that web-client is context root -- from name of war file)
I just tried this again and it should work. I hope this helps.