Empire specific components, tech - possible?

[gregebowman]

I understand that. But Last night, I started a new game. I recenlty downloaded some race files, which had everything but the .emp files. So I tried to load one of those races as an existing race. None of them would come up on the list. But interestingly enough, when I saw the list of AI races, one of those races was showing up as one of my opponents. I don't understand how the computer could use that race, but I couldn't. How can I save those new races with .emp files when I can't even get them to show up on the list of playable races?