Something

        <?php
        $username = $_COOKIE['loggedin'];
        if ( !isset( $_COOKIE['loggedin'] ) ) {
            echo '[ <a href="http://pickwickdragstrip.com/profiles/login.html">login</a> ] or [ <a href="http://pickwickdragstrip.com/profiles/register.html">Register</a> ] ';
        } else {
            echo '[ <a href="http://pickwickdragstrip.com/profiles/members/profile.php">Edit Profile</a> ] or [ <a href="http://pickwickdragstrip.com/profiles/logout.php">Logout</a> ] ';
        }
        ?>