My master data file was curropted so I created a copy of my saved game file and then uninstalled fallout during which I was asked whether or not I wanted to keep my game files I said yes. So I reinstall fallout and go to play but I have no saved games I again copy my saved files and moves them back into their original location but when I go to load I still don't have any saves. Can anyone help?

Move your saves out of the fallout folder and run the game. Start a new game and then save once so the game creates the folder for you. Move your savegame folder back over the fallout folder and replace everything.
Hopefully this will work and you will be able to play again.