Container Mange Persistence

I'll apologize up front for the cross post, but I'm not sure which
list would be most appropriate for this question. It could be a Java
problem, or a problem/set-up issue with WAS.

The environment:
I have WebSphere Application Server 6.1 installed with the EJB 3.0
feature pack on an IBM i at 5.4. I have a enterprise application (EAR)
that contains a web application (WAR), an EJB client, the EJB 3.0
implementation and a JPA library. I'm packing/building this
application with maven.

The problem:
Everything installs with no errors. I have a utility Java class that
looks up the EJB because it appears you can't inject an EJB into a JSF
managed bean with the feature pack. The issue is the EJB has an
EntityManager that should be getting injected, but it's not. I printed
a listing of the context "java:comp/env" where the persistence context
should be stored and nothing is there. I have worked around this by
managing the entities myself, but I don't want to leave it like this
if I don't have to.

So, my question is has anybody else had any issues similar to this? I
guess also, has anybody successfully deployed a JPA application on WAS
6.1 that does container managed persistence?

Thanks in advance,
--
James R. Perkins