was controlling your global.php , I think that everything is ok (but I have 1.7.6) -I think it is the same anyway-it should work
As I see that some people here with 1.7.6 -1.7.7 version has problems - it is my 1.7.6 version with auth_user_manage -( ignore it - its a Buddukes User Area ) , my code works good
if (defined("GET_CACHES")) {
$sql = "SELECT cat_id, cat_name, cat_description, cat_parent_id, cat_hits, cat_author, cat_order, auth_viewcat, auth_viewimage, auth_download, auth_upload, auth_directupload, auth_vote, auth_sendpostcard, auth_readcomment, auth_postcomment, auth_user_manage, cat_image