[murrtex]

it works great on my site..but otherwise i have another subdomain..and it does not wrok on it...why?

my subdomain wall.php

<?
//////////////////////////// COPYRIGHT NOTICE //////////////////////////////
// This script is a software application written by Michael Pierce.       //
// You are free to use this script on your site, but you may not claim    //
// the product as your own or redistribute the contents of this ZIP file  //
// without express written permission.                                    //
//                                                                        //
//             http://www.mpdev.net   packetjunkie@gmail.com              //
//                                                                        //
//               GraffitiWall ? 2003-2005, Michael Pierce                 //
//                                                                        //
//   We are not resposible for any use of this script on your servers.    //
////////////////////////////////////////////////////////////////////////////

// ####################### SET PHP ENVIRONMENT ###########################
error_reporting(E_ALL & ~E_NOTICE);

// #################### DEFINE IMPORTANT CONSTANTS #######################
define('THIS_SCRIPT', 'graffiti');
define('NO_REGISTER_GLOBALS', 1);

// ################### PRE-CACHE TEMPLATES AND DATA ######################
// get special phrase groups
$phrasegroups = array();

// get special data templates from the datastore
$specialtemplates = array();

// pre-cache templates used by all actions
$globaltemplates = array();

// pre-cache templates used by specific actions
$actiontemplates = array();

require("global.php");

$vbulletin->input->clean_array_gpc('p', array(
        'painttext'     => TYPE_STR,
        'adminreset'    => TYPE_UINT,
));

if ( isset($vbulletin->GPC['painttext']) ) $painttext = $vbulletin->GPC['painttext'];
if ( isset($vbulletin->GPC['adminreset']) ) $adminreset = $vbulletin->GPC['adminreset'];

$pathto = "D:/home/vhosts/4umturk.com/subdomains/18/httpdocs/forum";


if ($painttext != '') {
    $string = stripslashes("$painttext");
    
    // You can keep a log of text sent to your wall by uncommenting this section
    //$ip = IPADDRESS;
    //$fd = fopen("$pathto/efgraffiti.txt","a");
    //$debugtext = "$string | $ip | ".$bbuserinfo['username']."\n";
    //fwrite($fd, $debugtext);
    //fclose($fd);                   
    
    //$string = ereg_replace( "[^a-zA-Z0-9.!]", "", $string );
    $string = strtolower($string);
    
    # feel free to add your own censored words, or put in your own replacements

$string = str_replace( "www", "", $string );
    
    $fonts = array( "skate.ttf", "grand.ttf", "say.ttf", "tagster.ttf", "graffiti.ttf", "inthcity.ttf" );
    $pickfont = $fonts[array_rand( $fonts )];
    $fontfile = "$pathto/fonts/$pickfont";
    
    $graffitifile = "$pathto/graffiti.png";
    
    if ( $pickfont == "grand.ttf" ) $sizes = array( "16", "18", "20", "22" );
    elseif ( $pickfont == "skate.ttf" ) $sizes = array( "12", "14", "16", "18" );
    else
        $sizes = array( "18", "20", "22" );
    
    $fontsize = $sizes[array_rand( $sizes )];
        
    $angles = array( "0", "5", "15", "20", "30", "-5", "-15", "-20", "-30" );
    $textangle = $angles[array_rand( $angles )];
    
    $picwidth = 1024;
    $picheight = 600;
    
    if ( !file_exists($graffitifile) || ($adminreset == 1 && can_moderate()) ) {
        $myimage = ImageCreate($picwidth, $picheight);
        $newimage = 1;
    }
    else {
        $myimage = ImageCreateFromPng($graffitifile);
        $newimage = 0;
    }
    
    $black = ImageColorAllocate($myimage, 0, 0, 0);
    $red   = ImageColorAllocate($myimage, 255, 0, 0);
    
    $randcolor = rand(1,9);
    if ( $randcolor == 1 ) $color = ImageColorAllocate($myimage, 255, 255, 0);
    elseif ( $randcolor == 2 ) $color = ImageColorAllocate($myimage, 255, 165, 0);
    elseif ( $randcolor == 3 ) $color = ImageColorAllocate($myimage, 255, 20, 147);
    elseif ( $randcolor == 4 ) $color = ImageColorAllocate($myimage, 255, 0, 0);    
    elseif ( $randcolor == 5 ) $color = ImageColorAllocate($myimage, 255, 255, 255);            
    elseif ( $randcolor == 6 ) $color = ImageColorAllocate($myimage, 0, 255, 255);            
    elseif ( $randcolor == 7 ) $color = ImageColorAllocate($myimage, 255, 0, 255);            
    else $color = ImageColorAllocate($myimage, 0, 255, 0);

    if ( $newimage == 1 ) {
        ImageFilledRectangle($myimage, 0, 0, $picwidth, $picheight, $black);
        ImageColorTransparent($myimage, $black);
        $string = "18.4umTurk.com";
    }
    
    list($pos_blx, $pos_bly, $pos_brx, $pos_bry, $pos_trx, $pos_try, $pos_tlx, $pos_tly) = imagettfbbox($fontsize, $textangle, $fontfile, $string);
    $textwidth = $pos_brx - $pos_blx;
    $textheight = $pos_bry - $pos_bly;

    do {
        $randw = rand(0,($picwidth-20));
    } while( (($randw+$textwidth) > $picwidth) );
    $start_x = $randw;
    
    do {
        $randh = rand(0,($picheight-20));
    } while( (($randh+$textheight) > $picheight) || (($randh-$textheight) < 0) );
    $start_y = $randh;
    
    imagettftext($myimage, $fontsize, $textangle, $start_x, $start_y, $color, $fontfile, $string);
    
    ImagePng($myimage, $graffitifile);
    ImageDestroy($myimage);
    
    header("Location: http://18.4umturk.com/forum/wall.php");
    exit;
}

$navbits = array();
$navbits[$parent] = 'Graffiti Wall';

$navbits = construct_navbits($navbits);
eval('$navbar = "' . fetch_template('navbar') . '";');

$styleinclude = process_replacement_vars($styleinclude);
$headinclude = process_replacement_vars($headinclude);
$header = process_replacement_vars($header);
$navbar = process_replacement_vars($navbar);
    
$vbheader = "$stylevar[htmldoctype]
<html dir=\"$stylevar[textdirection]\" lang=\"$stylevar[languagecode]\">
<head>
<title>18.4umTurk Graffiti Wall - Duvar Yazıları</title>
$styleinclude
$headinclude
</head>
<body>
$header
$navbar";

print $vbheader;


?>
<form method="post" action="wall.php">
<table border="0" cellspacing="0" cellpadding="0"  align="center" background="images/bricks.jpg">
    <tr>
    <td align="left"> 
       <img src="graffiti.png?<? echo rand(10000,99999); ?>">
    </td>
  </tr>
<?php

if ( $vbulletin->userinfo['userid'] ) {
echo<<<INPUTTEXT
  <tr>
  <td align="center" class="alt1">
      <input type="text" name="painttext" style="font-size: 8pt;" size="25" maxlength="25" value="" />&nbsp;
      <input type="submit" value="Paint It!" style="font-size: 8pt;" />
INPUTTEXT;

    if ( can_moderate() ) {
echo<<<INPUTTEXT
      <br /><input type="checkbox" name="adminreset" value="1" />&nbsp;Wipe Wall</font>
INPUTTEXT;
    }
    
echo<<<INPUTTEXT
   </td>
   </tr>
INPUTTEXT;
}
?>
</table>
<br />

</form>

<?php
eval('$vbfooter = "' . fetch_template('footer') . '";');
$vbfooter = process_replacement_vars($vbfooter);
$vbfooter = "</div>$vbfooter";

print $vbfooter;
?>

and when i want to write something i get following error;

Warning: imagepng(): Unable to open 'D:/home/vhosts/4umturk.com/subdomains/18/httpdocs/forum/graffiti.png' for writing in \wall.php on line 128

Warning: Cannot modify header information - headers already sent by (output started at D:\home\vhosts\4umturk.com\subdomains\18\httpdocs\ forum\includes\class_core.php:2948) in \wall.php on line 131

and my graffiti.png chmod is 777