I spent some more time on this. I am easily able to get /jkmanager working when I run JBoss as a non-cluster , using "JBoss/bin/run.bat -c all" , then, if I also remove the load balanced configuration on Apache, then /jkmanager will work for me.
Why is it that , in this clustered config, I can't get JKMANAGER to work?
Please, if you can help me, download my example configuration ( http://www.javamemories.com/wp-content/uploads/ClusterThumbDrive.zip )and try it. Or, if you have something like this working, can you paste in an example of how you configured the directives?