Financial Software Questions? Ask IT Support for Answers ASAP
If they are set up as venders you should be able to do it with credit and debit memos
they issue you a credit for the fine and a debit when its paid off.
Its fairly routine for a vender to give a credit memo that puts your balance with them negative. If you pay in full for an item and the return it for instance. They might just leave you with a store credit.
If the salesman hands you a check you dont even have to issue the debit memo. just apply the check to the credit memo.
it is under vender / enter bills
you can select credit as the type of bill
this page has detailed instructions with screen shots