Mod files of the latest "Battle of Europe" release version.
Unzip the "Battle of Europe" folder and place it into the "Modules" folder in your M&B Warband install directory.
If you have Warband on Steam, you can also use the workshop to easily install and update the mod;
Steamcommunity.com
why did the mod ask me for a viking conquest key? ^^
Sorry for that late reply, but it should be fixed now... :)