The Picture you have listed from GM Parts Giant is more or less a sticker that is just placed on the metal outside of the weatherstripping. Whereas the first picture looks like a replacement or add on piece to the interior trim that goes along the floor and hides the wire harness.
From what I can gather the First picture, from Flickr Is what you would get in a newer Pontiac G6 Coupe/Convertible. Since it's a two door the edge cover trim is longer and can accommodate the G6 Sign.
The second picture that are the stickers is what comes on the 4 door.