Ah, sorry about that, I was actually thinking about PowerStore 2 when I said that. To get a link to the admin pages, you would want to modify the links like this:
<?php if(isset($_SESSION["UserID"])) { ?>
<a href="<?php echo($assumedRoot); ?>users_Profile.php">My Profile</a>
<a href="<?php echo($assumedRoot); ?>users_LogOut.php">Log out</a>
<?php
if(isset($_SESSION["UserGroupID"] && $_SESSION["UserGroupID"] > 1) {?><a href="<?php echo($assumedRoot); ?>Admin/">Admin</a><?php }
} else { ?>
<a href="<?php echo($assumedRoot); ?>users_LogIn.php">Login</a>
<a href="<?php echo($assumedRoot); ?>users_Registration.php">Register</a>
<?php } ?>
<?php if(isset($_SESSION["WA_Store_Cart_Items"]) && $_SESSION["WA_Store_Cart_Items"] != "") { ?>
<a href="<?php echo($assumedRoot); ?>cart.php">View Cart</a>
<?php } ?>
let me know if that works for you.