John, thanks (and nice job) on posting the pics.
Okay, it's obvious what's wrong with the first picture. Rest assured it is now done properly, with the clip actually in the hole.
Second pic is the one that made me yell when we pulled the old range out. The green board was put up by the previous (handyman) homeowner when they remodeled the house back in 1973. It's sized for the original GE range. (Back when appliances lasted more than three years.)
What I wound up doing was shutting the breaker off, and just swapping the cord to the new range, as my mother wouldn't let me pull down the green board (or cut a bigger hole in it) to move the receptacle to the outside of the wall. Oh well, can't win 'em all I guess.
Ian A.