problem in programming with jms

[lovejesus]

hey,everyone!
i 'm new here.have some problems when programming with jms in jboss 4.0.2:

1.What's the differece and relationship between the config files under deploy-hasingleton\jms and deploy\jms? What do I need to do if I want to config my jms provider and jms destination?

2.When running a jms test program,I encounted such exception:
java.lang.ClassCastException: javax.naming.Reference

it is resulted in the code :

Object tmp = iniCtx.lookup("ConnectionFactory");
 TopicConnectionFactory tcf = (TopicConnectionFactory)tmp;

I found the fixing method saying : add the messaging.jar, messagingclient.jar and messagingImpl.jar to the project. But the problem is i can't find them anywhere,who could tell me how to do?Most of the Jms programming guides are in WebLogic or WebSphere,is there any thing like this in jboss 4 environment?

thanks a lot!

[alexserbul]

In my case all is stored in deploy/jms - I made ssl-jms providers and MDBs cross-linking between two boxes and didn't encounter problems in JMS on JBoss. In JBoss Admin. manual see "Messaging on JBoss", I found a lot of goods there.