states machine

Hi I have installed workflow-ng on drupal 5.7 and I can't figure out how to allow users to change a state. I have created a state machine with 2 states and connected them with a specific content type. when I either edit or view that content type I cant see any way to change the state of the content? I have read the documentation but it doesnt talk about the state machine.

Once I get the state machine working I will fire an email if the state is changed to a certain "finished" state so that I can then view the node.

Any help would be greatly appreciated.