As the TPN funding comes from governmental funds, all teachers may avail of its benefits through the different associations:
by displaying details of times and venues in your website you comply with this requirement;
you can contact the Education Centre local to your activity it can advertise your event to their local schools;
you can work with your nominated Education Centre and agree to have all your bookings dealt through their system for a fee;
a more expensive way would be to post to all schools in the area where the event takes place, or all the schools in the country in the case of the national conference; however, this method is not encouraged due to the high cost it involves.