disable login step if user is logged in

During my checkout I have a login step, but whenever a user is logged in this step still appears as an empty page. Any ideas to fix this?

I'm using 1.6

Hi,

Can you show me how did you configured your checkout workflow ("Hikashop->System->Configuration->'Checkout'") through some screenshots ? if you're not using the last version of Hikashop you should update your version .

I wish i could but the shop is very heavily modified. I will ask the supervisor to look into upgrading..

I have included a screenshot of the config page

if anyone is interested in the fix:

if (!JFactory::getUser()->guest) {
    $app = JFactory::getApplication();
    $url = hikashop_completeLink('checkout&task=step&step=' . ($this->step + 1) . $url_itemid);
    $app->redirect($url);
    } else {
// all the other crap
}