There's a version of the '97 SE version of Episode IV which was done by Harmy... compiled from various sources and it looks very good.

It is available on tehparadox... Start up a free account and do a search for "star wars harmy." You'll find a thread called "Harmy's STAR WARS Trilogy Despecialized Edition - NO DISCUSSIONS/REQUESTS (SEE POST #2)."

There are links there for Harmy's Despecialized versions of Star Wars, The Empire Strikes Back, and Return of the Jedi... The links (and description) for Harmy's REspecialized version are under those for ROTJ. What's pretty cool about this release is that it includes the original 5.1 DTS-HD audio as heard during the theatrical run of the SE's.

Hope that helps!