This OSCommerce shopping cart here, [url removed, login to view] needs a small modification. When customers come to the site they often do not remember they are already in the system. When they select an item to buy, then click Checkout and do not choose sign-in, but proceed to enter their information intending to place an order, this file "[url removed, login to view]" looks to see if they are in the database and sends them back to the login page if they are. I need to present a different set of instructions in the [url removed, login to view] page when this is the case so we can explain to these users that they are in the system and need to login. If you know OScommerce, this should be a simple job.