This lesson will show you how to create a job that recurs every second Friday. Before you start you will need to have at least one job template created and the Recurring Jobs & Reminders add-on turned on.
Select a Job Template
If you don't have any job templates, check out this tutorial - http://support.servicem8.com/entries/21549619-How-to-create-a-job-template
It explains how to create a template.