Disclaimer: By following these steps, you take full responsibility for whatever happens next. It’s a simple process, but thanks to so many years in IT, I know that there are people that can screw up a copy/paste out there. If you have any doubts, find someone that can help you.
If you know how to install a mod from a site like Fallout Nexus, then the process is pretty much the same thing with only you having to read the steps as to where the DLC was saved on your PC by Games for Windows Live and then copying and pasting the files to the Data directory. All done!
I had this happen to me. After downloading the content and watching the game say that it was loading it, nothing happens for about an hour until I give up. It seems that even though the game claims to have loaded it, one some machines the quest simply doesn’t start. There is a way to force/fix it, though, but it requires you to do a little jumping through a few technical hoops as I found out after trying to track down some information on this.
If you’ve installed a mod in Oblivion before, then this will seem like cake. If not, I hope my steps are as clear as they can be in case you run into this.
The following steps are for Windows XP so don’t blame me if you try this under Vista. I’m not sure how different the steps are.
After you’ve purchased the content via Games for Windows Live, it will have downloaded it to a default location. First, make sure that you can see hidden folders. If you already can, you can skip these steps. If not and are not sure how to:
1) Double click on My Computer
2) Double click on your C: drive
3) You will see a list of folders.
4) In the menu bar at the top of the window click on Tools -> Folder Options
5) Under Folder Options, click on View
6) Under View, you will see an option marked “Hidden Files and Folders”
7) Double click on “Hidden Files and Folders”
8 ) Click on the radio button next to “Show hidden files and folders”
7) Once you’ve done that, Click on Apply. You should now be able to see hidden folders.
If you can already see hidden folders, or if you’ve followed the steps above, follow this path on your C: drive:
C:\Documents and Settings\MyUserName\Local Settings\Application Data\Microsoft\XLive\DLC
1) “MyUserName” is YOUR user name
2) Under the DLC folder, keep drilling down until you get to a folder called Content
3) Double click on the Content folder
4) You should see three files with the Anchorage name. Highlight all three and right click -> Copy
5) Go to the folder where you installed Fallout 3 (it will usually be: C:\Program Files\Bethesda Softworks\Fallout 3)
6) Double click on the Data folder under your Fallout 3 folder
7) Right click -> Paste; this will copy the three files over
8 ) Start up Fallout 3
9) Click on Data Files; you should see the Fallout 3 file checkmarked and see the Anchorage entry
10) Click on the empty box next to “Anchorage” to checkmark it
11) Start the game and wait a few minutes for the radio signal
That should do it. If it still doesn’t work for you, I’m not sure what to say since these instructions are what worked for me.