313820 flower shop software

This program has been designed (plese see attachments for diagram and description of each function) for a flower bazar to administrate clients, concierges, products, orders, reports, and special offers. The program must be compatible with mac. and windows. Because we are going to store credit card numbers in it, security is an important issue. I am open to suggestions and advices during the process about the best way to do it. The rights of the program and code will be our property.