Have you got the shots sorted ie can you play shots or just playing the block and leave? When I first started it took me a while to figure out what order to press the buttons. Once this is sorted, batting isn't too hard as long as you play each ball on its line, and then its length.
The order to press the buttons is quite simple, first you press the direction you want to hit the shot, and then when the time is right you press either the back foot or front foot button. Learning the right timings is a very important part of the game and is easiest to learn while playing actualy games.
Other than that, you just bat like you would in real life. Don't run stupid runs, try to hit the ball into gaps etc. On easy and medium modes you won't need to use the defensive shots very often.
You may encounter problems using the six hit button, a few people confuse this button as an actual shot and try to use it like they'd use the front foot shot etc, but it actually adds power to your shot and you can use it with just about any shot selection.
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