Check if the partition where you have your xbmc4gamers copy have enough space for storing the artwork installer,
it is not recommended to use partition C: as it have limited disk space.
Now, I believe the artwork installer checks the game-id to determine what game you have in your dirs.
So possible you have a default.xbe with a unknown game-id --- some cracked versions with crack intro's infront of them
might do this.
If that is not the case, then maybe you care to do some manual work ?
Go to your xbmc4gamers Artwork installer dir with the filemanager:
Mine is located at this location:
E:\xbmc\system\scripts\Xbox Artwork Installer\Artwork\ntsc\Baldurs Gate Dark Alliance 2\
Copy the "_resource" dir and the default.tbn + fanart.jpg into the root dir of you baldurs gate 2 game directory.
Then it should work.
(Not that most of the game artwork are ntsc versions, only the PAL only games are located in the pal dir.)
Post ideas or dicuss development of the Blog / Forum / Bugtracker etc