JNDI name is any one of those that you got in log file.
so if you do:
Context ctx = new InitialContext();
IEJBHelloWorldPort hello = (IEJBHelloWorldPort) ctx.lookup("java:module/EJBHelloWorldBean");
it should work, and also you are trying to get remote bean, but you do not deploy it... that is also a reason why it does not work.
cheers,
tomaz