Ultimate Facebook Question: How do I know who's liking my page?

I created a Facebook page long before using Ultimate Facebook. That page has over 400 likes. I since used Ultimate Facebook to place a Like on the top of my homepage. The homepage like has 100 “likes”. 1) Can I integrate my previous page’s likes into my homepage’s likes? 2) Even if I cannot integrate the two…how do I find out who those 100 people are who have clicked like on my Homepage?