try some tennis backhand lesson dvd, it may be very helpful.
I would recommend the "tennis consistent win - backhand " by Tom A Very .
some tips you got to remember.
1. Turn the shoulder as well as the racket as a unit.
2. Close your racket face. (your left land should help this)
3. Lower your racket at least 1 feet below the ball!! (very important)
4. Naturally release your swing and hit the ball.
5. Make sure you hit the ball from 7pm o'clock to 1 pm. (for more top spin)
6. Follow through ...
