That doesn't mean that 52% rejects evolution, as evolution and intelligent design don't neccesarily contradict.
Well no, that's true. 52% do not believe in the conventional theory of evolution though (if the poll is accurate). The spin that intelligent design is evolution (but different) has hardly been used here, btw.
Not sure whether to be suprised by these figures or not; after all it's not exactly a much polled issue... the only suprising bit was how high the "wants creationism taught in schools" part was.