WindowsXP SP2

I prepared to deliver our system to our customer today. In our system, I use 2 pcs. One pc control one more pc remotely. Until now, we use WindowsXP SP1 but nowadays we can't get SP1. In SP2, the network security became severe. For our system the remote-control is required, it is a real troublesome problem for me. Because I am not familiar with Windows network. So I was setting with the support on the MSN messenger with the maker in Spain. After all, I could do it. I was glad to do it.