danny,

rdr had the original track that the re-manipulated sample came from. i presume stve db got the NIN multitracks from http://www.ninremixes.com/multitracks.php

and if i remember correctly the teardrop remix was bordering on schranz.. this could esily mask out the music of teardrop with a little clever eq.

the only way to sample vocals is to use your ears and pick parts of the tracks that arent too busy .. unless you have an accapella or the multi tracks.

check out that NIN site btw danny, about 30 tracks available in multis.