Yeah I never used my CD. I had configured my Network Adapter using Madden 2003.
I know someone in the UK who is using an NTSC PS2 to play NTSC online games. Again, I think the NTSC games will have network configuration software included.
BTW, I heard the European software is different and has many features which is not available in the US. So it would be cool to get that as well but you probably couldn't play any NTSC online games with it.