It really isnt that difficult once you break it down. Tommy Jones' game consists of three main components: the release, the projection, and the equipment. Ill help you out here.
The Release: Tommy Jones utilizes one of the softest hands in all of bowling, by that i mean that at the point of release his hand is actually open ala pete weber. He doesnt try to force the ball to hook off his hand, but by getting out behind the back of the ball, he creates leverage without much effort. It is also important to note that at the point of release, the ball is no more than 1-2 inches from his ankle. This leads into the next aspect of his game.
The Projection: It used to be taught that getting up on the ball and trying to force it to hook was best, like mark roth used to do, but now with the advancement of the conditions, you want a more level release point. The pendelum armswing doesnt work anymore on those conditions, so bowlers are using a "planing" or "shoveling" armswing. By keeping the trajectory of the ball level with the lane for a longer period of time, you dont run the risk of having the ball burn up in the midlane. This creates a much more controllable reaction and also increases the amount of energy the ball had at the end of the pattern, which generates into more overall hook.
The Equipment: I have had the chance to glance over TJ's equipment from a couple tournaments and at first i didnt understand how to lay a ball out to appropriately control the type or reaction. If you look at The One he used from the US Open this year, check out the pin placement, its almost 4 inches above the bridge with the cg about an inch directly to the right of the fingers. You talk about laying a ball out to hook, TJ knows his stuff. The type of equipment more importantly though suits his game. You need to take a look at how your game matches up to equipment, do you hit up on the ball at the bottom of the swing? If so you want to avoid pin up balls because you get over under on the backend. Just FYI, do with it what you will
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I Bowl to win...