56K Network Adapter

[khafan]

I didn't use those USB modems but when you run an online game connection set up, they show all communication device that you've connected to your ps2 because I have US network adaptor and they show both modem and ethernet devices, I think when you use a USB modem, it will be available in that communication device list then you can choose it and set up your connection with it.

About your first post, I have a pal console chipped with messiah 1 and I use US network adaptor with it.
you need your dialup number and user name and password for connecting to any ISP. I'm not in UK so I don't know what's the requirment for connecting to Freeserve.

Start up disk is NTSC, so your TV should be NTSC compatible, although you don't need this disk because network connection wizard is available in online games.

your Pal games will work with US adaptor because this adaptor is only a communication device, nothing more.

About DNAS thing, I have 3 online games ( midnight club II, socom, automodellista) and unfortunately these games only support broadband connection so I fooled them by connecting my ps2 through ethernet port to my PC then I used my PC modem and got access to chat room thing on the server and never get banned. also I used my backups and never get banned

I hope this help you and sorry for my long post.