[Lynne]

Assuming your code was correct to begin with, this should work:

PHP Code:

$tabselected = '';
$tablinks = '';
if (THIS_SCRIPT == 'osc_shop')
{
    $vbulletin->options['selectednavtab']='oscShop';
    $tabselected = ' class="selected"';
if ($vbulletin->userinfo['userid']) $tablinks = '<ul class="floatcontainer">';
if (is_member_of($vbulletin->userinfo, 6))  
{
$tablinks .= '<li><a href="misc.php">Misc</a></li>';
}
if ($vbulletin->userinfo['userid'])
{
      $tablinks .= '    <li><a href="account.php">My Account</a></li>
                        <li><a href="shopping_cart.php">Cart Contents</a></li>
                        <li><a href="checkout_shipping.php">Checkout</a></li>
 
                        </ul> ';

}
} 

$template_hook['navtab_middle'] .= '<li'.$tabselected.'><a class="navtab" href="shop.php">Shop</a>'.$tablinks.'</li>' ;