When you are talking about jBPM 5, what components are you talking about? The core engine, the jbpm-console, all of the above?
The core engine itself is just a simple Java POJO component, so depending on what features you are using (persistence, history logging, human task service?), you simply need to get all the required jars on your application server classpath. All jBPM5 jars define their dependencies using a maven pom, so it should be trivial to let maven derive all required jars based on the list of jars you're using.
Kris