Mithaldu: I understand the delisting (though seriously, it's pretty anti-customer of GOG to not have a sticky for that in this forum at least), however the delisting has also removed the support section.
GOG, will you restore it?
Just checked and other games that are not available anymore are also affected (at least Colin McRae Rally 2005 and Toca Race Driver 3). My advice is that you should contact GOG staff thru support page directly as, while they have new hand scouring the forum, it's rather easy to miss posts in game specific forums.