I suggest you venture onto the dressage forum and browse through some of the topics in there. The dressage 'frame' is not a party trick that can be taught in a day. It takes weeks, months, years - to develop the strength, co-ordination and ability of a horse to take it's weight over the haunches and work into the bridle consistently. The higher the level of dressage, the higher the level of collection and the higher the level of strength and co-ordination required.
Of course you could always saw at the horse's mouth or pull back on the reins really hard until it drops it's head into a 'pretty' frame, but if you want a healthy, happy, sound and well educated horse, it's a much better idea to train properly to start with ;)