OK, I know I promised this last night but got distracted. Here's the info from Lazlo's discography:
The KLF: Madrugada Eterna                       
  [Mar 1990] unreleased single

 12"WL:	1990 UK (KLF Communications; KLF ETERNA 1) [x20?]
	  5:20	Madrugada Eterna (club mix) [from "White Room" promo video]
		Madrugada Eterna (club mix - edit)
	  7:52	Madrugada Eterna  [=KLF010CD "Kylie" version]
	[Erik Gander: "Record does not contain the mix used in the White
	 Room promo video"]

 12"WL:	199? IT (??; ETERNITY 23) [bootleg; 1-sided]
	  5:20	Madrugada Eterna (club mix)
	[Comes without sleeve but with "bumper"-style sticker that reads:
	 "KLF / MADRUGADA ETERNA (CLUB MIX) / EDIZIONE SPECIALE /
Again, just speculation, but I feel that the "Italian bootleg" is an actual official release. I have personally never heard of a single person on this list seeing Eterna 1 let alone owning a copy. I will share a rip of this mix a little later today as it seems to be one of the more in demand tracks!
Dan

On Fri, Aug 26, 2011 at 9:17 PM, Dan T. Hutchins <danthutchins@gmail.com> wrote:
As far as I know. this is one of the releases that only two or three people close to the band have reported seeing and I don't ever recall anyone ever reporting seeing it in a shop. Just speculation, but I think the Italian bootleg is the actual official release because for economic reasons or because the guys were unhappy with the other mixes. If the 3 track exists at all, it is only as a test pressing. Again, I think the Italian bootleg is the actual legit KLF version. Will look at Lazlo's Discography machine and give you more info in a few moments.

Dan

On Aug 26, 2011, at 9:09 PM, Mark Howk <link343e@gmail.com> wrote:

>
> Yeah, sure. Does anyone know if it actually exists, outside of Bill or Jimmy?
>
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