If I were you I'd not use the child porn customer's computer to post on CEG anymore. I'd also make sure that your boss allows you to access the internet to be sure that a customer's computer is working correctly, or this surfing at work thing may come back to haunt you; for instance: "How do we know that you didn't just put all this kiddie porn on this guy's computer? After all, you were doing other things in violation of company policy..."
Scott
