Please Help

[alien2]

Please tell me exactly how you go about importing a downloaded race into the game.

The standard documentation seems to be very lacking in terms of explaining the finer points of the game.

Is the game too easy when playing as a single player against the computer ?? I.E. does the AI need beefing up as a priority ??
Every game I have played so far, I have never found my systems being invaded by the computer opponents.

Hope you can help

Cheers