If you are looking at workflow, you will probably also want to look into jBMP http://labs.jboss.com/portal/jbossjbpm/?prjlist=false. That combined with JBoss AS 4.0.4 (which comes with Hibernate) should get you running.
Thanks for your reply.
Is it possible to use Jboss jBPM with mySQL and Apache instead of hibernate and JBoss portal because the company wants only mySQL as it database and Apache Tomcat as it server. I have look through the Jboss jBPM product sheet and it say that Jboss jBPM is compatible with mySQL and Apache Tomcat. As i am new in here, so can you please help me with this. In order to built on top of JBoss jBPM, i need to be sure that Jboss jBPM really works well with mySQL and Apache Tomcat.
Thanks a lot.