Sessions for show if and allowing access

I am having a great deal of trouble with show if rules and allowing access.
Our site has a log in page (attached), member directory, member posts and custom pages.
The member posts contain ads, news and events and I used datassist a few times to generate search and results pages. We also have a classified form which is joined with the posts.
The log in page shows session id which is what seems like I should be able to use the show if rule everywhere. Show is customerid matches the session of the user that is logged in.
The Auctions.php is working and using
<?php
if (isset($_SESSION['directoryid']) && $_SESSION['directoryid'] == $row_WADAevents['customerid']) {
?>

I tried to use the webassist show utility tool on the Accomplishments-Updates.php page both with Session directoryid and id and neither works.