Hi there,
When WOL was still online, the XWIS Servers could be accessed by a modification in Windows's internal routing table (i.e. the hosts-file), making the game send the data to another IP. Since EA handled server listing over to XWIS, the game still contacts the original EA servers and those servers are redirecting that to XWIS internaly after version check.
Afaik, Olaf won't give out that WOL-Server to the World, because it would end up in everyone starting out with hosting Listing-Servers, and thus destroying the community by spreading and splitting the players over more and more servers, making them unable to find each other. I think for Mod-Creators it would be a great idea to be able to host listing servers for their mods to be played online, on the other hand for clans, which I think you want it for, or just for people who like to do their "own thing" it would lead exactly to that chaos described above.
Greetings,
Bachsau