The USD 400 mio loan to an officer of the company was not properly disclosed. Therefore Refco's financial statements were erronious for the past few years. Unfortunately, repayment of the loan doesn't turn back time. It is kind of like a bank teller 'borrowing' money from the till, and then returning it when she gets paid. Repayment doesn't grant absolution from the original sin.
The incident highlights a lack of adequate internal control. And Refco is paying the price. This said, it shouldn't impact the company, from what I have read in the WSJ. At least it isn't making me move my account.
Van88Guy