Help with LCD

Hi
Im new with this and my language is bad.
I have 4X20 LCD and LPC936 and i dont know
hov to write a program.
I try something and nothing heppens.
Please can you see my work and tell me
whats wrong and how to fix this problem.
My code:

Main.c

/********************************************************************************/
/* Module: LCD driver */
/* Author: Ales Moskon */
/* Compiler: Keil C */
/* Version: 1.00.00 maj-2007 */
/* Notes: "LCD" driver */
/********************************************************************************/

#include <reg936.h>
#include <stdio.h>

typedef unsigned char uchar;

void delay_ms (unsigned int count_ms);
void LCD_cls(void);
void LCD_cursor_blink(uchar mode);
void LCD_dcode ( uchar b);
void LCD_gotoxy(uchar x,y);
//bit LCD_busy(void);
void LCD_home(void);
void LCD_init(void);
void LCD_on(uchar mode);
void LCD_print(void);
void LCD_putchar ( uchar b);
void LCD_puts ( uchar b[]);
void LCD_send4(uchar ch);
void v_PortConfig(void);

void main()
{ LCD_init(); LCD_cls(); LCD_gotoxy(1,1); LCD_print();

return;
}

Lcd.c

/********************************************************************************/
/* Module: LCD driver */
/* Author: Ales Moskon */
/* Compiler: Keil C */
/* Version: 1.00.00 maj-2007 */
/* Notes: "LCD" driver */
/********************************************************************************/

#include <REG936.H>
#include <stdio.h>

typedef unsigned char uchar;
typedef unsigned int ttimedate;

sbit LCD_AD4 = P2^3;
sbit LCD_AD5 = P2^4;
sbit LCD_AD6 = P2^5;
sbit LCD_AD7 = P2^6;
sbit LCD_RS = P2^2;
sbit LCD_EN = P2^0;
sbit LCD_RW = P2^1;

void LCD_cls(void);
void LCD_home(void);
void LCD_on(uchar mode);
void LCD_cursor_blink(uchar mode);
void LCD_gotoxy(uchar x,y);
//bit LCD_busy(void);
void LCD_init(void);
void LCD_send4(uchar ch);
void delay_ms (unsigned int count_ms);
void LCD_putchar(uchar ch);
void LCD_puts(char s[]);

void LCD_dcode(uchar b);

void LCD_print_temp(int temp);
void LCD_print_timedate(ttimedate ctime);

static blinkstate = 0;

/*--------------------------------------------------------------------------------------*/

void delay_ms (unsigned int count_ms)
{ unsigned int i,j; for (j=0; j<count_ms*2; j++) for (i=0; i<123; i++);
}

/*--------------------------------------------------------------------------------------*/

void LCD_send4(uchar ch)
{ /*while(LCD_busy()); */ LCD_RW = 0; LCD_EN=1; LCD_AD7=ch&128; LCD_AD6=ch&64; LCD_AD5=ch&32; LCD_AD4=ch&16; LCD_EN=0;

delay_ms (10);

LCD_EN=1; LCD_AD7=ch&8; LCD_AD6=ch&4; LCD_AD5=ch&2; LCD_AD4=ch&1;

LCD_EN=0;
}

/*--------------------------------------------------------------------------------------*/

void LCD_init(void)
{ LCD_RW = 0; LCD_EN=0; delay_ms (15); LCD_RS=0; LCD_EN=1; LCD_AD7=0;LCD_AD6=0;LCD_AD5=1;LCD_AD4=1; LCD_EN=0; delay_ms (5); LCD_RS=0; LCD_EN=1; LCD_AD7=0;LCD_AD6=0;LCD_AD5=1;LCD_AD4=1; LCD_EN=0;

delay_ms (1); LCD_RS=0; LCD_EN=1; LCD_AD7=0;LCD_AD6=0;LCD_AD5=1;LCD_AD4=1; LCD_EN=0; delay_ms (1); LCD_RS=0; LCD_EN=1; LCD_AD7=0;LCD_AD6=0;LCD_AD5=1;LCD_AD4=0; LCD_EN=0;

LCD_dcode (0x28); LCD_dcode (0x08); LCD_dcode (0x09); LCD_dcode (0x06); LCD_on(1); LCD_cls(); LCD_home();

LCD_cursor_blink(1);
}

/*--------------------------------------------------------------------------------------*/

void LCD_dcode ( uchar b)
{ delay_ms (10);

LCD_RS=0; LCD_send4(b);
}

/*--------------------------------------------------------------------------*/

void LCD_puts ( uchar b[])
{ char i; for (i=0;((b[i]!='\0'));i++) { LCD_putchar(b[i]);

}
}

/*--------------------------------------------------------------------------*/

void LCD_putchar ( uchar b)
{ delay_ms (1); LCD_RS=1; LCD_send4(b);
}

/*--------------------------------------------------------------------------*/

void LCD_home(void)
{ LCD_dcode (0x80);
}

/*--------------------------------------------------------------------------*/

void LCD_cursor_blink(uchar mode)
{

#define _disp_off 0x08
#define _ncrsr_blnk 0x0D
#define _ncrsr_nblnk 0x0C
#define _crsr_blnk 0x0F
#define _crsr_nblnk 0x0E

switch (mode) { case 0 : LCD_dcode(_disp_off); break; case 1 : LCD_dcode(_ncrsr_nblnk); break; case 2 : LCD_dcode(_ncrsr_blnk); break; case 3 : LCD_dcode(_crsr_nblnk); break; case 4 : LCD_dcode(_crsr_blnk); break; } if (mode>0) blinkstate=mode;
}

/*--------------------------------------------------------------------------------------*/

void LCD_cls(void)
{

LCD_dcode(1);
}

/*--------------------------------------------------------------------------------------*/

void LCD_on(uchar mode)
{ if (mode==0) LCD_cursor_blink(0); else LCD_cursor_blink(blinkstate);
}

/*--------------------------------------------------------------------------------------*/

/*bit LCD_busy(void)
{ bit tmp; LCD_RW=1; LCD_EN = 1; tmp = LCD_AD7; LCD_EN = 0; LCD_RW=0; return tmp;
} */
/*--------------------------------------------------------------------------------------*/

void LCD_gotoxy(uchar x,y)
{ LCD_dcode(0x80+0x40*(y-1)+(x-1)); delay_ms (10);
}

/*--------------------------------------------------------------------------------------*/

void LCD_print(void)
{ uchar LCD_buf[16]; printf ( "Zdravo " ); LCD_puts(LCD_buf);
}