Wings,
Line up as you would in windless conditions, apply rudder to keep the plane flying in a staight path, and use ailerons to keep the wings level.

Practice using the rudder to keep the plane in a straight line over the runway a few times first. It comes fairly naturally to me now, but it took a lot of practice. It doesn't take nearly as much rudder as you might think, even in a 90 degree crosswind.
Dennis-