Vista - Workflow Sample

Could someone please guide me to where I could find a sample workflow
application that have dynamic route capabilities. What I need is a
smaple application will route a form from one user to the other and the
user will be able to approve and add comments and route to next person
in the queue.. I have built a rich web application with much richer
functionality, but my manager wants me to shift it to wwf and am kinda
lost..