well i originally completed the game a few times using the same game saves for my player stats. Well ive uninstalled it since then, backing up my saves in case i ever wanted another go. Well now ive installed that mothership zeta upgrade but for it to work you need to log into that windows live thing which i set up an it all works. Problem is coz when i played it first time round i didnt acces live now when i log into live i cannot access my old game saves. SO when i dont log in i can access my old saves but not use the upgrade when i log in i can only start again but can access the upgrade. Can anyone help out here?