Hey there! I purchased this version from Amazon here, installed the first disc, then the second with no problems, i can get the game to work, but not the DLC that came with it. Anyone having that problem?
I hear you. Personally for the PC version I don't think it exists. I've search forums and walkthroughs and it talks about the bonus content if you're playing the console version of the game, but nothing about the PC version. I'm starting to thing that Game of The Year edtion is just a repackage of the original base game.
On the launcher, click the "Data Files" option and check in the boxes next to the DLC packs you want enabled. If they are unchecked, it acts like they aren't installed. For some stupid reason, the default state after installing the DLC is unchecked, so you have to go do that to make everything work.