Hi Roberto,
Take a look in here for jBPM5:
http://salaboy.wordpress.com/2011/01/24/announcing-jbpm5-community-training/
and here for Drools:
http://salaboy.wordpress.com/2011/02/23/drools-5-community-training-announced-roadmap/
Those open source trainings also contains a reference to a github repository where you can find hands on.
Greetings.