hey i need help regurding displaying on lcd

can plz tel me how to display ADC output on LCD
i'm using LPC2378
this my code
/******************************************************************************/
/* BLINKY.C: LED Flasher */
/******************************************************************************/
/* This file is part of the uVision/ARM development tools. */
/* Copyright (c) 2005-2006 Keil Software. All rights reserved. */
/* This software may only be used under the terms of a valid, current, */
/* end user licence from KEIL for a compatible version of KEIL software */
/* development tools. Nothing else gives you the right to use this software. */
/******************************************************************************/

#include <stdio.h>
#include <LPC23xx.H> /* LPC23xx definitions */
#include "LCD.h" /* Graphic LCD function prototypes */


/* Function that initializes LEDs */
void LED_Init(void) {
PINSEL10 = 0; /* Disable ETM interface, enable LEDs */
FIO2DIR = 0x000000FF; /* P2.0..7 defined as Outputs */
FIO2MASK = 0x00000000;
}

/* Function that turns on requested LED */
void LED_On (unsigned int num) {
FIO2SET = (1 << num);
}

/* Function that turns off requested LED */
void LED_Off (unsigned int num) {
FIO2CLR = (1 << num);
}

/* Function that outputs value to LEDs */
// void LED_Out(unsigned int value) {
// FIO2CLR = 0xFF; /* Turn off all LEDs */
//FIO2SET = (value & 0xFF); /* Turn on requested LEDs */
//}


/* Function for displaying bargraph on the LCD display */
void Disp_Bargraph(int pos_x, int pos_y, int value) {
int i;

set_cursor (pos_x, pos_y);
for (i = 0; i < 16; i++) {
if (value > 5) {
lcd_putchar (0x05);
value -= 5;
} else {
lcd_putchar (value);
value = 0;
}
}
}

/* Import external IRQ handlers from IRQ.c file */
extern __irq void T0_IRQHandler (void);
extern __irq void ADC_IRQHandler (void);

/* Import external functions from Serial.c file */
extern void init_serial (void);

/* Import external variables from IRQ.c file */
extern short AD_last;
extern unsigned char clock_1s;


int main (void) {
int i;
short AD_old, AD_value, AD_print;
unsigned char *x;
LED_Init(); /* LED Initialization */

/* Enable and setup timer interrupt, start timer */
T0MR0 = 11999; /* 1msec = 12000-1 at 12.0 MHz */
T0MCR = 3; /* Interrupt and Reset on MR0 */
T0TCR = 1; /* Timer0 Enable */
VICVectAddr4 = (unsigned long)T0_IRQHandler;/* Set Interrupt Vector */
VICVectCntl4 = 15; /* use it for Timer0 Interrupt */
VICIntEnable = (1 << 4); /* Enable Timer0 Interrupt */

/* Power enable, Setup pin, enable and setup AD converter interrupt */
PCONP |= (1 << 12); /* Enable power to AD block */
PINSEL1 = 0x4000; /* AD0.0 pin function select */
AD0INTEN = (1 << 0); /* CH0 enable interrupt */
AD0CR = 0x00200301; /* Power up, PCLK/4, sel AD0.0 */
VICVectAddr18 = (unsigned long)ADC_IRQHandler;/* Set Interrupt Vector */
VICVectCntl18 = 14; /* use it for ADC Interrupt */
VICIntEnable = (1 << 18); /* Enable ADC Interrupt */

init_serial(); /* Init UART */

lcd_init();
lcd_clear();
lcd_print (" LIFE GOES ON ");
set_cursor (0, 1);
lcd_print (" DDDDDDDDDDDDDDD ");

for (i = 0; i < 20000000; i++); /* Wait for initial display */

while (1) { /* Loop forever */
AD_value = AD_last; /* Read AD_last value */
if (AD_value != AD_last) /* Make sure that AD interrupt did */
AD_value = AD_last; /* not interfere with value reading */
AD_print = AD_value; /* Get unscaled value for printout */
AD_value /= 13; /* Scale to AD_Value to 0 - 78 */
if (AD_old != AD_value) { /* If AD value has changed */
AD_old = AD_value;
// Disp_Bargraph(0, 1, AD_value); /* Display bargraph according to AD */
lcd_clear();
x=(unsigned char * )AD_value;
lcd_print (x);
}
if (clock_1s) {
clock_1s = 0;
printf ("AD value = 0x%03x\n\r", AD_print);
}
}
}

its nt showing display