problemer med unzip-script

hej experter

jeg har fundet følgende script:

<?
$folderName = substr($_FILES['Filedata']['name'],0,-4);
$folderPath = "test/";
if(move_uploaded_file($_FILES['Filedata']['tmp_name'],$folderPath.$_FILES['Filedata']['name'])){
  $zip = zip_open($folderPath.$_FILES['Filedata']['name']);
  mkdir($folderPath.$folderName);
  if($zip !== false) {
      while ($zip_entry = zip_read($zip)) {
        if (zip_entry_open($zip, $zip_entry, "r")) {
            $buf = zip_entry_read($zip_entry, zip_entry_filesize($zip_entry));
            $fp = fopen($folderPath."/".zip_entry_name($zip_entry),"w");
            fwrite($fp,$buf);
            zip_entry_close($zip_entry);
        }
        echo "\n";
      }
  }
}else{
  echo "zip file could not be found!";
}
?>

men jeg kan ikke få det til at virke.
jeg får følgende fejl:

Warning: fopen(test//fil/) [function.fopen]: failed to open stream: Is a directory in /domains/www.nyform-sport.dk/www/site/info.php on line 11

Warning: fopen() [function.fopen]: SAFE MODE Restriction in effect. The script whose uid is 1312 is not allowed to access /domains/www.nyform-sport.dk/www/site/test/fil owned by uid 33 in /domains/www.nyform-sport.dk/www/site/info.php on line 11

nogle der kan hjælpe med sådan én?