There is supposed to be a copy of the manual included but I can't find it. Any help would be appreciated. Thanks

On the top of the screen, there is a button that says "My Account". Move your cursor over it, and a menu should come down, the first option being "My Games." Clicking this will bring you to a list of your games. Click on Alpha Centauri. The will bring up a panel on the bottom half of the screen. On the bottom right of the screen/this panel, there are the words "My bonus content", under which the manual is the first item.