When you're in the Facebook app, under all the content you see your turn based games.
Top right corner of your turn based games it shows the text Games Archive.
Click on that. Once that page opens, top left there is a drop down box. Change that from Turn Based Games to Live Games and your live history shows. You should then be able to see and view the game.
Click on PGN just under the game, this allows you to download the pgn file.
I can't download the pgn of my live games from Facebook, nor can I 'view' the game.
How do I do that? I want to submit it to the computery thing for analysis.