The Seam DVD Store demo example does not work in EAP 5.1.0 CR1.
I installed EAP using the installer from here:
http://download.devel.redhat.com/devel/candidates/JBEAP5.0.0/JBEAP-5.1.0-CR1/
When I tried to deploy the DVD store demo using the menu item, it fails with:

13:41:57,403 ERROR [[/seam-dvdstore]] Exception sending context initialized event to listener instance of class org.jboss.seam.servlet.SeamListener
java.lang.RuntimeException: Could not create Component: org.jboss.seam.bpm.jbpm
...
Caused by: java.lang.NoClassDefFoundError: org/hibernate/lob/ReaderInputStream
...
Caused by: java.lang.ClassNotFoundException: org.hibernate.lob.ReaderInputStream from BaseClassLoader@12e6c13f

{vfszip:/home/rasp/jbossqa/EAP5/EnterprisePlatform-5.1.0/jboss-eap-5.1/jboss-as/server/all/deploy/jboss-seam-dvdstore.ear/}

This issue is described here:
https://jira.jboss.org/browse/JBPAPP-4415