The Orb: Instore Promo [Dec 1999] bootleg remix compilation
If those tracks on there are not bootleg tracks (by which I mean that they are the original versions of the tracks, but released on a bootlegged format eg an unlicensed repressing) then: track 1 is from the orb's very first release back in like 88 or 89, track two is a just a remix of LFC, track 3 is a b-side remix of perpetual dawn that I think was released only on vinyl (could be wrong here), and then the fourth one if it is in fact the ambient mix, is a studio demo version that managed to get out...
The Orb: A Huge Ever-Growing Pulsating Brain That Rules From The Centre of The Ultraworld (Loving You) [Oct 1989] single
There was at least one legitimate repressing of this single, so you should check to see if its an original pressing or not... This is just part one of a two part ssingle for AHEGB...