What you heard is the original 1996 version by Underworld themselves, im sure of it.
Since you say it had the chords at the start then the vocal over that then it kicks into the drums.........thats the original!
Did it have a huge kick led loop? If it did thats the original.
hey,
im sure this is the version your after. Type in this link-
http://www.4shared.com/file/16472317...6_version.html