There are many conservatives in this country, and a good portion of them are Christians in some form or another. Even though they might not all share the same exact religion, such as Catholicism or even baptist, they do have one thing in common. They believe in God.
These Christian conservatives have one candidate to vote for at the moment, and that is John McCain. He is not a bad candidate for them. He is a war veteran and a true lover of his country. However, he does waiver a little on some of the issues, and how conservatives view they should be dealt with. For instance, although he believes abortion is something that should not be done, he also believes that there are circumstances in which it is acceptable. If the mother's life is endanger, rape, etc. are things that he believes are reasons that would be acceptable to abort a child.
At any rate he is the conservative running in this particular race, and for conservatives, there are little other choices. I'm sure they don't want to vote for Obama.
But when you break down the conservative 'republican' party a little further, you will find that there is a portion of the Christians in this party that are in some what of a dilemma. They want to vote for McCain, but do not feel that they can for religious reasons. The reason that they feel this way is because of Palin. Is she against some religious belief? No. The main reason is that she is a she. They go back to a view that females should not lead males. That they are there to support, but not to lead. So, they have a dilemma. If they put McCain in office, then they are putting a female in a leading position, and that would be going against God.
I see their point to an extent. I too am a Christian, and in our church women are not preachers nor do they serve communion or teach in adult classes. It is our belief that the men are to fill this role in teaching the bible. We also believe that the man is the head of the household and his word is final.