Help with coding please - Arduino+AdaMotorshield+joystick

Thanks again for your support, though the answers leave a lot of new questions.
Can't you make an example or something, as i started out im new to this,
and i think its much easyer to learn from examples.

I found this code on the net and changed it a bit for my setup and i got fine
serial readings in Arduino both X-Y values from the thumbstick.

But i can't figure out how to mix this code with the Adafruit motorshield
to make it work - can you take a look.

I use this code:

#include <Stepper.h>
#include <AccelStepper.h>
#include <AFMotor.h>

AF_Stepper motor1(20, 1);
AF_Stepper motor2(20, 2);

const int selectPin = 2;  
const int joystick_xPin = A0;  
const int joystick_yPin = A5;  
int oldX = 0;  
int oldY = 0;  
int oldSelect = 0;  
void setup()  
{  
  pinMode(selectPin, INPUT);  
  digitalWrite(selectPin, HIGH);  
  Serial.begin(9600);  
}
void loop()
{  
  int joystick_x;  
  int joystick_y;  
  int select;  
  joystick_x = map(analogRead(joystick_xPin), 0, 1023, 1, 20);  
  joystick_y = map(analogRead(joystick_yPin), 0, 1023, 1, 20);  
 select = !digitalRead(selectPin);  
  if((oldX != joystick_x) ||  
      (oldY != joystick_y) ||  
     (oldSelect != select)){  
       Serial.print("joystick X: ");  
       Serial.print(joystick_x);  
       Serial.print(" joystick Y: ");  
       Serial.print(joystick_y);  
       if(select){  
          Serial.print(" select");  
       }  
       Serial.println("");  
       oldX = joystick_x;  
       oldY = joystick_y;  
       oldSelect = select;  
  }  
 delay(10);  
}

Thanks