Oops, I missed your comment at http://exitcondition.alrubinger.com/2008/12/20/doing-two-models-at-the-same-time/ :
Perhaps a missing detail that gave you problems as well is the no-fields by default.
Meaning one must change BeanAccessMode –> FIELDS or ALL.
Adding
<bean .. access-mode="ALL">
and it works as expected. Thanks!