you will probably need to search you computer to find the broken steel esp and other files associated with it and move them to the fallout directory just like you would any other mod. from reading around other forums, it seems gfwl doesn't download and install the dlc's where they are supposed to go. also some people have claimed that the windows search utility can't find the esp, so you may have to search for it manually.
Thanks for the quick response.
It took me 2hrs to research on how to find the folder with the DLC files. What a pain in the butt!!!
But I got the info and I'm able to play Broken Steel.
Broken Steel is great, that it unlocks the level cap from 20 to 30, but overall I think it's way too short. I'm going to get Point Lookout.