like the other threads about it say, the backspacing on the '05+ wheels is different than the '02-04 wheels. you will need a spacer or an adaptor for either set, but you will need it 1/4" thicker for the '05+ wheels.
personally, get the '02-04 wheels. the spokes have a different curve to them. the '05+ ones are flatter and look weird to me on old cars.