My opinion, for what it's worth, is that the 777 is on the 'MJ on stage' shirt. His jacket isn't open as wide as it is on the screen pic, so it's obscuring most of it but I can see the edge of the 7s, particulary the bottom one.
@voiceforthesilent, I don't think they are different shirts. On the big pic Souza posted, that red button is open, revealing more of the red material underneath. On the stage/screen pic, the button is done up, making the front of the shirt look different (more brown).
Now I do remember reading something ages ago about the 777s not always being on that shirt, but I really don't think these pictures are showing that.