Though he believes "Intellegant Design" is the theory of aliens creating us, and not "the science of creationism"

FWIW, when you say "science of creationism", ID doesn't necessarily mean "creationism of the bible", though biblical creationists are usually the ones who champion the idea. Theistic Evolution would fall under Intelligent Design, though this is a notion most evangelicals reject for theological reasons. I'd also like to point out that Christianity is not united on the young earth vs. old earth issue, though some make it appear that way.