So whilst trying to find discs I found a spindle where I had a working copy of the browser. I have followed the instructions and put everything in correctly, it seems to have revived my old profile I showed up on Dreamcast now (bigmeanbunny) and I checked the DMZ part of the video and have sorted that.
However I can't get MSR to work, when I got Internet in game nothing happens after the site loads, it loads a VMU screen first where it's asking me for a settings file, should I have one?
Also not sure if this is linked but I can't log in to SegaNet. It says I have a username and have had it send me the password but even when I try that it's not working. Is this potentially my issue?
If you're totally stuck you could download and burn Dreamkey 3. I'm a PAL gamer and, as I recall, I had to set up in Dreamkey but used XDP to set up for NTSC exclusives. Sure there's a better way but it worked for me.