Ships sets - Ai wont do any thing

Hi everybody. Soo umm i downloaded two ships sets and they work fine except i started a new game and the game picked one of the new empires so i'm playing for a while i notice there not doing anything. So i go and do the whole players thing so i can control them and when i get to control them they don't have any ships no ships even designed. so i went to go check and see if this is happening with the ones that came with the game and there fine. But only the downloaded ones wont do anything. I also checked if the ministers when on and they where. What's goin on why they do anything. whats goin on.