Rowdy is definatley gaited. His trot is not a normal trot, and neither is his canter. You can't have a gaited horse that is only gaited at the walk.
I honestly think you need to stop with the jumps for a while. It may seem like no fun to you, but it's the only thing that is going to fix all of his problems and guarantee that you and Rowdy are safe when you do start jumping again.
You need to pretty much start him all over, and work on getting him relaxed and supple, and listening to your cues, not running around wherever he pleases. I would put a regular D-Ring snaffle in so he can relax, as your hands are pretty all over the place and a hard bit is only damaging his mouth and his mind. Work on transitions, NO yanking or pulling. Do a lot of circles and diagonals. When, and only when, he has calmed down and is listening to you, and your hands soften up, you should start jumping again. I highly advise getting a real trainer.
I easily see someone getting hurt in this situation, and I think it's time for you to be mature and realize that riding a horse isn't always about doing what you want, but what is safe for you, the horse, and others.
Please realize that I am in no way trying to be mean, but tell you from my own experience, what is best for you and your horse to make riding a safer, and more fun activity for the both of you.
~Kait & Mark~