[jbpm-users] About Task Form

Hi all. I've searched through the net and through the forum, bat couldn't find the informations I need (probably it's my fault). I've designed a flow using the jPDL designer. The flow has some form too (xhtml). I've my custom web interface (I don't want to use the jBPM console). How can I integrate such pages inside my web application? Wich method should I call to get those pages? Thanks in advance, Massimiliano Ziccardi