Please help. I installed oscommerce from fantisco with all the default settings. I installed the authorize.net module and I have an authorize.net account. I place the login key and transaction key in the administrative area. However, when I go to process an order, it takes me to a blank page where it tells me either the keys cannot befound. This doesn't make sense since I have used these keys before. Is there something I have to set up at authorize.net to accomondate OScommerce. Please help.