Sorry to bother, i found out that i needed to deploy the esb into de jboss-4.2.2.
So far i had been using only the jbossesb-server and didn't know i'd need the jbossesb.zip to install the esb.
By the way, good work with the documentation so far. The pdfs are very good and the samples great! Maybe in the next version you guys could include something specifically about classloading!
FYI we have only tested with jbossas.4.2.1.GA.