Method to add nfo file poster.jpg by hand

i tried another way .inside the vidon folder i edited the nfos that egreat creates and changed the poster that it should download . Still nothing it downloads the first one

tried media elch cannot get it to work still

This simply does not work. Ieven took the nfo file from .vidon folder that the A5 creates ,edited the path that downloads the movie poster and still it redownloads the same one as before (i deleted thumbnails before doing that). So any other suggestions