Examples of OpenGL Performer applications can be found in $VJ_BASE_DIR/share/samples/pf. These are for more advanced developers who are familiar with Performer and some of the more complicated aspects of VR Juggler. There are two main programs there:
pfNav: A starting point for basic VR Juggler Performer applications that need to load a model and navigate through it. Users implement their application by inheriting from a provided class, simplePfNav. This is a good place for Performer beginners to start because simplePfNav hides many of the complicated details (which actually makes that class far from simple).
pfConfigNav: A more advanced example of a VR Juggler Performer application that can be given its model through a VR Juggler configuration chunk.