Hi,
Do you know that you need to start Job Executor thread? -- Configuring it in jbpm.cfg.xml is not enough.
http://docs.jboss.com/jbpm/v3.2/userguide/html_single/#d0e140
The job executor component is packaged in the core jbpm-jpdl library, but it needs to be deployed in one of the following ways: either register the JobExecutorLauncher servlet context listener in the web app deployment descriptor to start/stop the job executor during creation/destruction of the servlet context, or start up a separate JVM and start the job executor in there programatically.
You can find jbpm-jpdl-3.2.3/deploy/jbpm-console.war as an example of job executor launcher servlet (see WEB-INF/web.xml).
Toshiya