seems you found an incredibly old tutorial, as the screenshot shows a JBoss 3.2.5, which is absolutely not useable for EJB3. The rest of the tutorial is probably outdated as well.
What Eclipse plugin do you use for your JavaEE5 development? Do you use "Eclipse Web Tools Platform" or "JBoss Tools"? Both should provide tutorials somewhere.
i'M USING JBOSS TOOLS
THANK YOU SIR