how to clear customer information after every transaction in prestashop 1.5.4.1

[Jackcorzine]

Am trying to go live with my client's prestashop installation and running into a few bugs. We have created groups for the different schools that my client services and I have provided a login and password for those groups since that is the only way I can figure to password protect each category. The problem we run into is when the customer goes to check out they view the billing information for the previous client in the shopping cart. Is there a way to clear those fields after a transaction is completed so the information is not visible to the next customer?

 

Thanks in advance!

 

Jack Corzine