That's really the Holy Grail, right? I remember the initial airing of a condensed version on MTV's Live at the 10 Spot. I know the concert was August 12, 1999, so I would guess the 10 Spot aired sometime in 1999 or 2000. Anyway, I would have been 20 or 21 and just starting a cover band with close friends. I remember literally having a dinner party around the airing of (part) of this concert on MTV. We were star struck, wanting to be STP.
Anyway, I have the audio of Westwood 1 airing more than what aired on MTV, about 13 songs. Plus with the Michael tribute, we know Vasoline is mixed, so I am guessing the whole concert audio is mixed, it's just putting together the entire video.
In a different thread (I think) I put up a list of what I thought was likely. I would love to see a double disc greatest hits with unreleased/b-sides/other tracks released in companion with a Blu Ray that contained this whole concert and a doc of the making of their albums and their career.