Does anyone know where i can download for free the illustrated movie companion of twilight,new moon and eclipde??? Or even scans that are complete???

Most sites that I know have the stills of the Movie Companion or incomplete scans of the complete Movie Companion. So I can only link you to those.

New Moon: the first 20 complete pages, link

New Moon: 16 complete pages (not the same ones from above), link

Eclipse - mainly stills but a few complete pages of the Movie Companion,
link

It's not a lot. I suggest buying the book or looking through it at a bookstore. I hope that helped.