No pics but i will try to get some for you tomorrow .
Once you find the center point in the bed for the 4"hole and drill it , then notch the pinch weld on the drivers side to slip the rails in and then mount the center section . It really is pretty obvious what hole your going to use on the frame . IIRC its the 2 large oval holes on either side . you'll need to take E-brake hook loose from the frame then attach it to the frame plate before you tighten all down .
It's really pretty simple , take a 2x4 and lay it across the bedrails and pull the center section up with a ratchet strap and and snug it down , then go under the truck and start bolting the rails , side plates and frame hooks together.