Galeria com administrador

Ola, estou criando um sistema de gerenciamento de galeria com administrador, e pensei que estava pronto. so que o cliente pediu pra mim enclementar a area de upload com multiplos upload eu fiz do modo simple e não tenho a minima ideia de como fazer isso funcionar sem perder tudo o que eu fiz. o q eu devo fazer...

aqui esta o acesso ao url aonde esta hospedado o sistema do jeito que esta.

http://thejobconsultoria.com.br/galeriafotos/

aqui e o admin

http://thejobconsultoria.com.br/galeriafotos/admin

login: admin

senha: 1324zxdemo

e o db

https://phpmyadmin..

esse e o codigo da pagina que faz o upload unico

<?php
session_start();
include "include/includes.php";
$username=$_SESSION['username'];
if (!$username)

{ header("Location: login.php?mode=failed"); }

if($_POST['operation']=="addfile")
{

$categoryname=$_POST['categoryname'];

$folder_name = preg_replace('![^\w||\d|\.]!','_',$categoryname );
$mainImage=date(His).$_FILES['fleImage']['name'];
$thumbimage=date(His).$_FILES['ThumbImage']['name'];
$title=$_POST['title'];
$url=$_POST['url'];
$content=htmlentities($_POST['content']);
$type= htmlentities($_POST['type']);

move_uploaded_file($_FILES['ThumbImage']['tmp_name'], $base_dir .'/' . $folder_name.'/'. date(His).$_FILES['ThumbImage']['name'] );

move_uploaded_file($_FILES['fleImage']['tmp_name'], $base_dir .'/'. $folder_name.'/'. date(His).$_FILES['fleImage']['name']);
$que ="INSERT INTO webport (filename,thumbimage,content,url,altertag,type,categoryname)VALUES('$mainImage','$thumbimage','$content','$url','$title','$type','$categoryname')";
$e = mysql_query($que) OR die(mysql_error());
if($e)

{

header("location:gallery.php?mode=success");
}
}
if($_POST['operation']=="updatefile")

{

$categoryname=$_POST['categoryname'];
$folder_name=$_POST['categoryname'];

$id=$_POST['sn'];
$title=$_POST['title'];
$url=$_POST['url'];
$content= htmlentities($_POST['content']);
$type= htmlentities($_POST['type']);

move_uploaded_file($_FILES['ThumbImage']['tmp_name'], $base_dir .'/'. $folder_name. '/'. date(His).$_FILES['ThumbImage']['name'] );

move_uploaded_file($_FILES['fleImage']['tmp_name'], $base_dir .'/' . $folder_name. '/'.date(His) .$_FILES['fleImage']['name']);
$mainImage1 =$_FILES['fleImage']['name'];

$ThumbImage1 =$_FILES['ThumbImage']['name'];

if ($ThumbImage1 != '') {
 $ThumbImage = date(His).$ThumbImage1;
 } else {
	// deixar a imagem da categoria como foi
$ThumbImage =$_POST['thumbimagepath'];;
}

if ($mainImage1 != '') {
 $mainImage = date(His).$mainImage1;
 } else {
	// deixar a imagem da categoria como foi
$mainImage =$_POST['imagepath'];;
}

$sql="update webport set filename='$mainImage',thumbimage='$ThumbImage',altertag='$title',url='$url',content='$content',type='$type',categoryname='$categoryname' where id='$id'";
$e = mysql_query($sql) OR die(mysql_error());
if($e){
 header("location:gallery.php?mode=editsuccess");
 }
}

?>
<?php
$mode=$_GET['mode'];
include "include/header.php"; ?>
<div id="content">
<script type="text/javascript" src="js/validation.js"></script>
<h2>Bem vindo <?php echo $username; ?></h2>

<div class="clear"></div>

<?php
if($mode=="add")

{

?>
<p> </p>
<h3>Adicionar nova foto</h3>
<p> </p>

<table width="100%">
<form action="galleryadd.php?mode=add" name="myform" method="post" enctype="multipart/form-data" onsubmit="return filevalidate(this)">
<input type="hidden" name="operation" value="addfile">
<tr>
 <td>Selecionar Categoria</td><td>
<select name="categoryname"><option value="">Selecione a Categoria</option>
<?php $arr_category = categoryFetchAll($arr_parameters);

if (is_array($arr_category))
{
foreach ($arr_category as $category)
{

?>
<option value="<?php echo $category['categoryname'];?>"><?php echo $category['categoryname'];?></option>
<?php } } ?>
</select>

</td></tr>
 <tr>

<td>Enviar Imagem pequena:</td>
 <td ><input name="ThumbImage" type="file"></td> </tr>
<tr>
<tr>

<td>Enviar Imagem grande:</td>
 <td ><input name="fleImage" type="file" id="fleImage"></td> </tr>
<tr>
<td>Titulo:</td>
 <td><input name="title" type="text" id="text" class="text_input"> </td>
 </tr>
<tr><td valign="top">Conteudo:</td>
 <td class="textarea" > <textarea name="content" cols="70" rows="10"></textarea></td>
 </tr>
 <tr><td>Tipo:</td>
 <td><input type=text class="text_input" name=type ></td></tr>
<tr>
 <td>Endereço:</td>
 <td><input type=text class="text_input" name=url value="http://"> </td></tr>

 <tr><td> </td><td><input type="submit" class="button" name=submit value="Adicionar" ></td></tr></table>
</form>
<?php }
if($mode=="update")

{

$sn=$_GET['id'];

$que="SELECT * from webport where id='$sn'";

 $result=mysql_query($que) or die(mysql_error());
 while($row=mysql_fetch_array($result)) {
 $sn=$row['id'];
 $title=$row['altertag'];
 $content=$row['content'];
 $type=$row['type'];
 $url=$row['url'];
 $filename=$row['filename'];
 $thumbfilename=$row['thumbimage'];
$categoryname=$row['categoryname'];

 }
	?>

<script>
function deleteImage(catId)

{ if (confirm('Delete this image?')) {

	window.location.href = 'update.php?&action=deleteImage&catId=' + catId;
}
}
function thumbImage(catId)

{ if (confirm('Delete this image?')) {

	window.location.href = 'update.php?action=thumbImage&catId=' + catId;
}
}
</script>
<script type="text/javascript">
 function validate(oForm){

if(oForm.title.value.length == 0){
 alert("Please Enter Title.");
 oForm.title.focus();
 return false;
 }
if(oForm.content.value.length == 0){
 alert("Please Enter Content.");
 oForm.content.focus();
 return false;
 }
if(oForm.type.value.length == 0){
 alert("Please Enter File Type.");
 oForm.type.focus();
 return false;
 }

 var v = new RegExp();
 v.compile("^[A-Za-z]+://[A-Za-z0-9-_]+\\.[A-Za-z0-9-_%&\?\/.=]+$");
 if (!v.test(oForm["url"].value)) {
 alert("You must supply a valid URL.");
 return false;
 }

 return true;
 }
</script>

<p> </p>
<h3>Editar Itens</h3>
<p> </p>

<div class="box">
<table width="100%">
<form name="form1" method="post" action="galleryadd.php?mode=update" enctype="multipart/form-data" onsubmit="return validate(this)">
<input type="hidden" name="sn" value="<?php echo $sn; ?>">
<tr>
<td width="150">Selecionar Categoria</td>
<td><?php echo $categoryname; ?><input type="hidden" name="categoryname" value="<?php echo $categoryname; ?>"></td>
</tr>

<tr>
<td>Enviar Imagem pequena::</td>
<input type="hidden" name="thumbimagepath" value="<?php echo $thumbfilename; ?>">
<td><input class="text_input" name="ThumbImage" type="file" >
<div>
<h6>Miniatura atual</h6>
<?php if (	$thumbfilename != '') { ?>
<img src="<?php echo $file_url.$categoryname.'/'.$thumbfilename;?>" width="100" border="0" class="adminthumb" />
<br />
<a href="javascript:thumbImage(<?php echo $sn; ?>);" class="button" >Deletar Imagem</a>
<?php } ?>
</div>
</td>
</tr>

<tr>
<td>Enviar Imagem grande:</td>
<input type="hidden" name="imagepath" value="<?php echo $filename; ?>">
<td><input class="text_input" name="fleImage" type="file" id="fleImage" >
<div>
<h6>Miniatura atual</h6>
<?php if (	$filename != '') { ?>
<img src="<?php echo $file_url.$categoryname.'/'.$filename;?>" width="100" border="0" class="adminthumb" />
<br />
<a href="javascript:deleteImage(<?php echo $sn; ?>);" class="button" >Deletar Imagem</a>
<?php } ?>
</div>
</td>
</tr>

<tr>
<td>Tipo:</td>
<td><input name="title" class="text_input" value="<?php echo $title; ?>" type="text" id="text" size=30 maxlength="100" ></td>
</tr>
<input type="hidden" name="operation" value="updatefile">

<tr>
<td class="txtvt">Conteudo:</td>
<td><textarea name="content" cols="50" rows="10"><?php echo $content; ?></textarea> </td>
</tr>

<tr>
<td>Tipo:</td>
<td><input type=text class="text_input" value="<?php echo $type; ?>" name=type > </td>
</tr>

<tr>
<td>Endereço:</td>
<td><input class="text_input" type=text value="<?php echo $url ?>" name=url value="http://"> </td>
</tr>

<tr>
<td> </td>
<td><input type="submit" class="button" name=submit value="Salvar" ></td>
</tr>
</table>
</form>
<?php	} ?>
<?php include "include/footer.php"; ?>