Not done one myself but as someone who has suffered/suffers with it, and seen others suffering with it in silence, that it's about the ability to be able to ask for help and the resources your company can offer(whether through outside organisations or through internal schemes/departments), and mostly like the adverts say, that it's ok to not be ok and talk to people without fear of recrimination and get the support and time you need. As a course I guess it's tricky to cover loads as every situation will be different. Are you attending as a manager or just as a volunteer for example?
Kudos for doing it though, need more people taking these sort of steps to help people out