Blueline,
The first step would be to take a TRX Suspension Training Course. http://www.fitnessanywhere.com/education/ . Here you will learn over 70 TRX exercises, in detail, as well as all the benefits and target muscles of the exercises; how to properly perform and "cue" the exercise; and modifications and progressions to adapt the exercises to every fitness level. You'll also learn how to design your own TRX programs by following suspension training principles, using smart TRX exercise selection, and studying case scenarios to challenge your knowledge.
At the end of the course, you will receive a Certificate of Completion from Fitness Anywhere, Inc. which recognizes your ability to apply the knowledge and newly learned skills into your role as a fitness professional.
You can also sign up for the TRX affiliate program and make money on all of your referrals! www.fitnessanywhere.com/affiliate