Ok lets start over I think I may have some people that know what they are doing.
The guy has a DSl that is connected to a dslam. The dslam is mapped to a frame pvc on a T-1 that comes into our network as a layer 2 bridged connection. This is a private connection it does not go through the internet. He has a static ip address that I assigned. He has a full connection to us just like he has an ethernet connection at the office. We have firewalls content filters and proxy servers in place that catct most junk before it gets in to his personal computer. We have managed antivirus client on his computer that we push out updates as they become available it is checked every 30 min. I mentioned earlier that I was trying to attach to his hidden C$ share so I assumed you would know that it was a windows box. It is xp home sp1. Is there anything else that I might need to add to convice you that I have a clue.