php ทำอย่างไรก็ resize รูปไม่ได้สักทีรบกวนดูให้หน่อยค่ะว่าเป็นเพราะอะไรค่ะ

$fileupload = $_FILES['filUpload']['tmp_name'];
$fileType = $_FILES["filUpload"]["type"];
if(($fileType=="image/gif") || ($fileType=="image/jpeg") || ($fileType == "image/pjpeg") or $fileType == "")
{
		//*** Update Record ***/
		$strSQL = "UPDATE tblcatalogue_store ";
		$strSQL .=" SET name_before_photo1 = '".$_POST["txtName"]."' WHERE id_catalogue_store= '".$_GET["id_catalogue_store"]."' ";
		$objQuery = mysql_query($strSQL);		
	
	if($_FILES["filUpload"]["name"] != "" )
	{
		$images = $_FILES["fileUpload"]["tmp_name"];
		$new_images = "Thumbnails_".$_FILES["fileUpload"]["name"];
		move_uploaded_file($_FILES["fileUpload"]["tmp_name"],"photo/".$_FILES["fileUpload"]["name"]);
		$width=100; //*** Fix Width & Heigh (Autu caculate) ***//
		$size=GetimageSize($images);
		$height=round($width*$size[1]/$size[0]);
		$images_orig = ImageCreateFromJPEG($images);
		$photoX = ImagesX($images_orig);
		$photoY = ImagesY($images_orig);
		$images_fin = ImageCreateTrueColor($width, $height);
		ImageCopyResampled($images_fin, $images_orig, 0, 0, 0, 0, $width+1, $height+1, $photoX, $photoY);
		ImageJPEG($images_fin,"photo/".$new_images);
		ImageDestroy($images_orig);
		ImageDestroy($images_fin);
		
		
			//*** Delete Old File ***/	
			/*@unlink("photo/".$_POST["hdnOldFile"]);
			
			//*** Update New File ***/
			$strSQL = "UPDATE tblcatalogue_store ";
			$strSQL .=" SET before_photo1 = '".$_FILES["filUpload"]["name"]."' WHERE id_catalogue_store  = '".$_GET["id_catalogue_store"]."' ";
			$objQuery = mysql_query($strSQL);		

			?>
            <tr>
         					<td    colspan="2" align="center"><font color="#000000"  size="5"  face="Arial, Helvetica, sans-serif">แก้ไขเรียบร้อยแล้ว</font></td>
            </tr>
            <?
		}