I have Fallout 3 via Steam and I beat the game a while back. Now I was looking to get into the expansions and such but I have a problem. All my games were played out normally and not through "Live". When I sign into my "live" account my saves are no longer valid. If I download the expansions will I lose all my progress? The last expansion is a continuation of the original game and I would hate to have to start all over again.