Ok, now ther is nothing to do with that, What i have done now is add more upload files and it is happening that they are uploaded but the link does not appears in my mail.

i have the following to add to my mail:

//Sending Email to form owner
$mailto = "info@ideaspersonales.com";
$mailsubj = "COTIZACION";
$mailhead = "From: $email\n";
reset ($HTTP_POST_VARS);
$mailbody = "Datos del cliente y link de archivos :\n";
while (list ($key, $val) = each ($HTTP_POST_VARS))
{
if ($key!="submit")
{
$mailbody .= "$key : $val\n";
}
}
$mailbody .= "File Link 1: $upload_URL\n"; //
$mailbody .= "File Link 2: $upload2_URL\n"; //
$mailbody .= "File Link 3: $upload3_URL\n"; //
$mailbody .= "If any link is broken, please copy and paste it in your browser's address bar\n";
mail($mailto, $mailsubj, $mailbody, $mailhead);
header("Location: uploadaction.html");