Who would handle the Credit Card Payment function on your B2C application?

PBB would handle this. We have a Merchant Account Number and can currently receive payments via MasterCard, Visa, and American Express.

Would the B2B/B2C on-line web application provide me with the ability to have different pricing in the system for different customers?

Yes, PBB is able to build pricing by customer (B2B). Their log-in customer profile will determine the pricing that they will see when placing their order. A consumer (B2C) would not require a password and would get access to the pricing you have determined for consumers.

If my warehouse were to utilize PBB's Virtual Warehouse application how would my customers place their orders to my warehouse?

PBB would create a URL location for each of your customers. Your customers or "their" customers would be directed to this URL location to place their orders.