Employee owed amount needs to be deducted

Hi everyone. I am trying to figure out exactly how to handle the following situation in iExpense/AP/Peoplesoft Server

We are using Internet Expenses with our company to pay credit cards. An employee has a company credit card. He/She charges a personal expenses to the card. When the employee submits her expense report, He/ she selects this charge as a personal expense.  She then enters any out of pocket expenses. In the end, her personal expense charged to the company card is greater than her out of pocket expenses. Since the client is going through an upgrade from 11.5.8 to R12, their current business process functionality allows them to use the force pay feature (in 11.5.8) to pay out these amounts and