OSCommerce : Simple Invoice Add on

I would like to be able to display specific query on our invoices/order screen. count how many orders that have specific order status for that customers order. For example, if a customer who has placed an order on our website in the past and was refunded or their order was marked fraudulent a warning should be displayed on the invoice when printed and on screen when viewed. example Warning: customer has "x" orders that were refunded. Warning:Customer has "x" orders marked fraudulent. x = number of orders with that status.