If this address http://localhost/jsp-examples/
is not working, it means your connection between apache 2 and tomcat 5 is not working.
If you point you browser to http://localhost:8080/
this means you are not using the mod_jk connection, but just the tomcat 5.
To make it work, no port numbers should be in the middle of your address. You should have the apache respond to http://localhost
and tomcat to http://localhost/jsp-examples
if you followed the manual. I havenīt tried it with apache-tomcat-5.5.17.tar.gz but I will do it as soon as I have some time.