accesscontrol and roles in Drupal

Hi

just upgraded to ckfinder 2.1 and integrated this in drupal

I want to restrict access (rename and delete) to a role 'editor', webmaster and administrator have all access.
this is what I tried with no result, they all have the same rights (all rename and delete)

<?php
$config['RoleSessionVar'] = 'CKFinder_UserRole';
//session_start();
/*
AccessControl : used to restrict access or features to specific folders.

Many "AccessControl" entries can be added. All attributes are optional.
Subfolders inherit their default settings from their parents' definitions.

    - The "role" attribute accepts the special '*' value, which means
      "everybody".
    - The "resourceType" attribute accepts the special value '*', which
      means "all resource types".
*/
// first limit the default user rights
$config['AccessControl'][] = Array(
        'role' => '*',
        'resourceType' => '*',
        'folder' => '/',

        'folderView' => true,
        'folderCreate' => true,
        'folderRename' => false,
        'folderDelete' => false,

        'fileView' => true,
        'fileUpload' => true,
        'fileRename' => false,
        'fileDelete' => false);

// add some rights for webmasters and admins
$config['AccessControl'][] = Array(
        'role' => 'webmaster',
        'resourceType' => '*',
        'folder' => '/',

        'folderView' => true,
        'folderCreate' => true,
        'folderRename' => true,
        'folderDelete' => true,

        'fileView' => true,
        'fileUpload' => true,
        'fileRename' => true,
        'fileDelete' => true);

$config['AccessControl'][] = Array(
        'role' => 'administrator',
        'resourceType' => '*',
        'folder' => '/',

        'folderView' => true,
        'folderCreate' => true,
        'folderRename' => true,
        'folderDelete' => true,

        'fileView' => true,
        'fileUpload' => true,
        'fileRename' => true,
        'fileDelete' => true);
?>

Hope someone can help me with this issue.

thx
blueblot