UPLOADIFY - problem while SETTING SESSION/ COOKIE - Alternate solution

Today I got a weird problem with UPLOADIFY while setting a cookie/ session with uploaded filename with current timestamp; from AJAXed uploadify.php.
I was trying to set that from uploadify.php so that I could get the filename to formSubmit.php.
but it was not working as there used to be a flash player issue (the flash player access the uploadify script as a new user and gets a new session).

So, what I did is-

1.
in form.php (also contains javascript)-

<?php
// setting a variable  with current timestamp, to rename a file. 
[it will not affect on .gif/.png  images]
$uploadedImg = time().'.jpg';
?>

<script type="text/javascript">
$(document).ready(function() {
       $('#file_upload').uploadify({
        'uploader'  : './uploadify/uploadify.swf',
        'script'    : './uploadify/uploadify.php',
        'cancelImg' : './uploadify/cancel.png',
        'folder'    : './pics',
        'auto'      : true,
        'scriptData' : {'imgName': '<?=$uploadedImg?>'},
        'buttonText': 'Select Logo',

          'onAllComplete' : function(event,data) {
                   $('#profile_pic_flag').val(1);
          }
});
});
</script>


<form method="POST" action="formSubmit.php">

<!-- UPLOADIFY input element -->
 <input id="file_upload" name="file_upload" type="file"  />



 <!--  input element to get the Picture name-->
 <input type="hidden" name="profile_pic" id="profile_pic" value="<?=$uploadedImg?>"  />

  <!--  input element to  Check if an imege is
 uploaded or not(value set by UPLOADIFY onAllComplete event),
 [this element is more efficient while Editing forms]-->
  <input type="hidden" name="profile_pic_flag" id="profile_pic_flag" value="0" />

</form>

2.
in AJAXed uploadify.php

replace this part-

$tempFile = $_FILES['Filedata']['tmp_name'];
$targetPath = $_SERVER['DOCUMENT_ROOT'] . $_REQUEST['folder'] . '/';
$upFileName = $_REQUEST['imgName'];
$targetFile =  str_replace('//','/',$targetPath) . $upFileName;

// uploading the file with the 'imgName', which was set by form.php
// and picture uploaded easily

3.
in formSubmit.php

if(isset($_POST['profile_pic']) && $_POST['profile_pic'] && $_POST['profile_pic_flag'] )
{
  $profilePic = './pics/'.$_POST['profile_pic'];
  // Then storing the $profilePic in Database.
}

- And all are done.