Below are links to several types of information that is useful for the people who are putting on an orienteering event.

If you are someone who is considering helping at an event for the first time, you should look at the description of the tasks to be done at   Working at an Event

If you have asperations of directing an event, you should see what a event director does at  Event Directing  The Event Director is the person who designs all the courses for an event and puts out the control markers.

If you have agreed to be a event director, you should look at the kind of considerations that are needed to make good courses; see  Course Design
 
 If you have agreed to be a vetter, you should see what a vetter does at Vetting