Hello,
Think I got it.
I included:

CODE
// if the customer is not logged on, redirect them to the login page
if (!tep_session_is_registered('customer_id')) {
$navigation->set_snapshot();
tep_redirect(tep_href_link(FILENAME_LOGIN, '', 'SSL'));
}

at the top of each page to reqire a registered login.
Found it by looking at the account.php page.
Wonder if I can limit this code to only the Index.php page and remove the links to other site listings on the login.php page.
Anyway this does work.
Thank you
K