Open Source Document Management System | OpenKM

hi there,
i would like to use a document approval workflow and for document retention, but it seems i got lost on how to start with it.
how can i start to use the workflow and is there a sample of it...?

B. Regards,
Edward

Here http://wiki.openkm.com/index.php/Workflow_Guide you'll find all information you need and probably you would like to configure developer IDE http://wiki.openkm.com/index.php/Developer_Guide