Unfortunately no pics. For the driver's side, to get the old you're going to move it towards the rear of the car as you rotate it downward until the flange is 90 degrees from where it started, basically the flange straight up and down. Then it drops straight down from there. Putting the new header in is exactly opposite. Start with the flange straight up and down near the back of the engine as you slide it up in, then when the top of the flange gets to the exhaust port on the cylinder head, rotate the collector up as you move the header forward in the car.
Basically you keep the number 1 tube on the manifold / header in line with each of the exhaust ports on the head as it moves out / in.
You just need to get the car up high enough that you can stand the header on the end of the collector under the car right next to the oil filter.
Trying to explain it best I can so that you can possibly visualize it, but yeah, hard without pics, sorry.