ok, about the crosses...
i took a screen cap (small, i know, i'm sorry.. new to this) of the special edition and a screen cap of the OT (crappy asian "import").
the crosses were kind there in the original, but not nearly as pronounced. I personally think that some were added. what a crappy effect.
in this first one, if you look on 3PO's right shoulder, you'll see one.
but it's very very faint in this one.
this cap has VERY pronounced crosses.
but this one doesn't.
... sorry for the crap quality of the OT, it's all i've got (for right now anyway). i wish i had the 1997 DVD of New Hope. NO idea what happened to that. would be nice to compare. never thought i'd actually miss that disc... odd...