No pics on this computer but...
The coolant decal should be placed ontop of the rad support to the right of the hood latch.(standing infront of the car looking at the engine) My origonal decal covered the VIN stamping...I havn't decided if I want to place it in the exact same spot or not. Anywhere to the drivers side of the hood latch is acceptable.
The emissions decal should go ontop of the passengers side inner fender. You should be able to read it standing outside the car.
What color coolant decal did you get? I've seen some conflicting pictures. My origonal decal (for my 73) was white. I still have the origonal one. I've seen the white decals listed as being 74+ I also have a pic on my home computer of a 74 Challenger that has a yellow coolant sticker.