JudasIscariot: We're working on it :)
I have something different for you to work on. ;-)
Eador - MotbW has several outstanding issues that need to be fixed.
1) When you buy and install the DLC there is no indication in-game that the DLC is recognized. Since the game's start screen still shows the ad for the DLC you can assume that the DLC is not recognized.
2) The version that GOG has for download is already several versions behind. GOG has 1.4.5, the latest version is 1.5.2.
3) When you start the game the in-game updater asks you if you want to update the game. If you do that than you can not install the DLC anymore because you get the incompatible version message from the installer. So you have to uninstall the game and re-install it from scratch. You can update afterwards but issue 1) still applies.
4) When you click on the ad after updating you are forwarded to Steam.
These issues have been known
for months! Just check the first page of the Eador forum.
What needs to be done quickly is getting the latest version on GOG and asking the devs how to check if the DLC is active and post that in the forum. Long term there should be an indication (or better yet a toggle to switch DLC content on or off) in-game.
I know such things are usually not done over night but it would be nice to contact the devs ASAP and get at least an ETA for 1.5.2 soon.