JBOSS 5.1.0 GA and Orbeon Forms 3.7.1 ClassCastException and ConnectException

Has anyone been able to get Orbeon 3.7.1 to work 100% out of the box with Jboss 5.1?

I have the following errors:

Click on Form Builder (Preview) and get the error:

   Type class java.lang.ClassCastException
   Message org.apache.xerces.jaxp.datatype.DatatypeFactoryImpl
   Location oxf:/ops/pfc/xforms-epilogue.xpl
   Line 140
   Column 60
   Stack Trace

   java.lang.ClassCastException: org.apache.xerces.jaxp.datatype.DatatypeFactoryImpl
        at javax.xml.datatype.DatatypeFactory.newInstance(Unknown Source)

Click on Government Forms and get the error:

   Type class java.net.ConnectException
   Message Connection refused
   Location http://linux3:8080/orbeon/forms/service/resources/DMV-14/en
   Line -1
   Column -1
   Stack Trace

   java.net.ConnectException: Connection refused
        at java.net.PlainSocketImpl.socketConnect(Native Method)