Puneet,
You can create a base web project using the ant script comes with jBPM, checkout this link http://docs.jboss.com/jbpm/v4/userguide/html_single/#installscripts. These cofigurations(jbpm.cfg.xml or jbpm.hibernate.cfg.xml) uses a bunch of other files which are part of jbpm.jar.
btw, are you planning to use jBPM with Spring?