1 - trackstanding
2 - pivoting front and rear wheels
3 - when you learn how to pivot learn how to lift rear wheel without using brakes
4 - bunny hop
5 - j-hop
6 - start practicing hopping UP onto objects
7 - wheelies
8 - with all of those the balance slowly comes for rear wheel moves which will be needed for trials
9 - hopping in place (trackstanding with hop)
10 - japslapping
Those are my top ten to learn. No particular order as some come faster than others to different people. For movies and techniques try here
http://www.trials-online.com/
Cheers