upload script

[webudesign]

Salve,
sto cercando di configurare uno script che serve ai visitatori del mio sito per caricare mp3.
E' molto semplice:http://www.videomusic.nl/upload2.php
Ora vorrei anche aggiungere due campi dove si possa anche indicare il nome dell'artista e il titolo della canzone ma non so come devo fare. Chi mi puo' aiutare?
Lo script e' questo:
<?php
//vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv vvvvvvvvvv
// You may change maxsize, and allowable upload file types.
//^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ ^^^^^^^^^^
//Mmaximum file size. You may increase or decrease.
$MAX_SIZE = 6000000;

//Allowable file ext. names. you may add more extension names.
$FILE_EXTS = array('.zip','.jpg','.png','.gif','.doc','.wav','. swf','.fla','.mp3','.mp4','.asf','.mpeg','.avi','. wmv',);

//Allow file delete? no, if only allow upload only
$DELETABLE = true;


//vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv vvvvvvvvvv
// Do not touch the below if you are not confident.
//^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ ^^^^^^^^^^
/************************************************** **********
* Setup variables
************************************************** **********/
$site_name = $_SERVER['HTTP_HOST'];
$url_dir = "http://".$_SERVER['HTTP_HOST'].dirname($_SERVER['PHP_SELF']);
$url_this = "http://".$_SERVER['HTTP_HOST'].$_SERVER['PHP_SELF'];

$upload_dir = "files/";
$upload_url = $url_dir."/files/";
$message ="";

/************************************************** **********
* Create Upload Directory
************************************************** **********/
if (!is_dir("files")) {
if (!mkdir($upload_dir))
die ("upload_files directory doesn't exist and creation failed");
if (!chmod($upload_dir,0755))
die ("change permission to 755 failed.");
}

/************************************************** **********
* Process User's Request
************************************************** **********/
if ($_REQUEST[del] && $DELETABLE) {
$resource = fopen("log.txt","a");
fwrite($resource,date("Ymd h:i:s")."DELETE - $_SERVER[REMOTE_ADDR]"."$_REQUEST[del]\n");
fclose($resource);

if (strpos($_REQUEST[del],"/.")>0); //possible hacking
else if (strpos($_REQUEST[del],$upload_dir) === false); //possible hacking
else if (substr($_REQUEST[del],0,6)==$upload_dir) {
unlink($_REQUEST[del]);
print "<script>window.location.href='$url_this?message=d eleted successfully'</script>";
}
}
else if ($_FILES['userfile']) {
$resource = fopen("log.txt","a");
fwrite($resource,date("Ymd h:i:s")."UPLOAD - $_SERVER[REMOTE_ADDR]"
.$_FILES['userfile']['name']." "
.$_FILES['userfile']['type']."\n");
fclose($resource);

$file_type = $_FILES['userfile']['type'];
$file_name = $_FILES['userfile']['name'];
$file_ext = strtolower(substr($file_name,strrpos($file_name,". ")));

//File Size Check
if ( $_FILES['userfile']['size'] > $MAX_SIZE)
$message = "The file size is over 2MB.";
//File Extension Check
else if (!in_array($file_ext, $FILE_EXTS))
$message = "Sorry, $file_name($file_type) is not allowed to be uploaded.";
else
$message = do_upload($upload_dir, $upload_url);

print "<script>window.location.href='$url_this?message=$ message'</script>";
}
else if (!$_FILES['userfile']);
else
$message = "Invalid File Specified.";

/************************************************** **********
* List Files
************************************************** **********/
$handle=opendir($upload_dir);
$filelist = "";
while ($file = readdir($handle)) {
if(!is_dir($file) && !is_link($file)) {
$filelist .= "".$file."";
if ($DELETABLE)
$filelist .= "";
$filelist .= "_{".date("d-m H:i", filemtime($upload_dir.$file))
."}";
$filelist .="
";
}
}

function do_upload($upload_dir, $upload_url) {

$temp_name = $_FILES['userfile']['tmp_name'];
$file_name = $_FILES['userfile']['name'];
$file_name = str_replace("\\","",$file_name);
$file_name = str_replace("'","",$file_name);
$file_path = $upload_dir.$file_name;

//File Name Check
if ( $file_name =="") {
$message = "Invalid File Name Specified";
return $message;
}

$result = move_uploaded_file($temp_name, $file_path);
if (!chmod($file_path,0777))
$message = "change permission to 777 failed.";
else
$message = ($result)?"$file_name uploaded successfully." :
"Somthing is wrong with uploading a file.";
return $message;
}

?> <?=$_REQUEST[message]?>


[/b]</font>
<form name="upload" id="upload" ENCTYPE="multipart/form-data" method="post">
<font face="Book Antiqua" size="2" color="#EEEEEE">
Upload File </font> <input type="file" id="userfile" name="userfile">
<input type="submit" name="upload" value="Upload" style="font-family: Book Antiqua; font-size: 10 pt">
</form>


<font face="Book Antiqua" size="2">Files to review</font>
<hr width=50%>
<?=$filelist?>
<hr width=50%>
^{<a style="text-decoration:none"></a>}


</td>
<td width="1" style="border: 1 ridge #EEEEEE">
</td>
</tr>
</table>
</center>
</div>

[webudesign]

In pratica dovrebbe essere cosi': http://www.videomusic.nl/provaupload.php

solo che se si fa l'upload viene fuori solo il nome del file e non il nome artista e canzone.
Chi puo' aiutarmi? grazie

[webudesign]

Mi basterebbe anche che il tutto venga spedito automaticamente alla mia mail senza che sia visibile sul sito. L'importante che io possa sapere chi mi ha caricato i files.
Please nessuno ha una idea?