Well I faved this wallpaper http://gallery.minitokyo.net/view/54779/ two days ago when it was in the highlighted submissions and I noticed it disappeared from it yesterday?! I tried viewing MT's main page with both IE and FF but it seems it is gone for good.
I would like to know too the exact requirements to be highlighted in the main page (something like 40 favs within 4days, right?). I also see the section is shown here http://gallery.minitokyo.net/1/ but the pictures aren't the same. Are the one you put on the main page updated manually?