HotRod said:

If god made us, who made god?

That is a very good question, but it is one that arises from a misunderstanding of who/what Catholics believe God to be. We believe that he always has been, is now, and will be forever. Translation: God is throughout every period and moment of time at the same time (I know that's a paradox, but it is the best I can do with the English language :P). Therefore, he just "is." He is not a person or a thing in the usual sense of the word, but is being itself. We apply human aspects to God to further our understanding of him, but do not mean them literally.

It's a confusing concept and I may not be representing/explaining it very well, but suffice it to say that if God "is" then he doesn't need to be made.