the Black Sky dub extravaganza dub 1 & dub 2 promo 12" does actually exist, although i was not ware it was the same as the green eyed dub,
I know it exists because I was bidding on it ages ago and lost out to a real hardcore Shakespears sister fan - should have put a higher bid in than £75!!! - mad
there are very few copies in existence -
plus there was also an double acetate 12" - as shown here (athough no pictures):
http://eil.com/shop/moreinfo.asp?catalogid=25502
http://eil.com/shop/moreinfo.asp?catalogid=45382
i have asked eil to find me any copies to let me know, although knowing i have the dub - as the green eyed dub makes it a bit better, at least i'm not missing a track....