It's easy!
First, you need to create an account if you don't already have one. Fill out your profile and save it. Then, find the "Apply for Role" tab under "My Account". This will let you apply for the Tournament Director role, which (upon approval) will enable you to create events!
Once you become a Tournament Director, more Help pages will become available. These new pages relate to event creation and administration. Please let us know if you have any more questions: admin@titledisc.com