[KLF] Stevie leaves the JAMs?

Hi I was given a copy of the White Room CD the other day. It's the re-issue CD that has different track version of LTTT and Justified and Ancient, together with a bonus J&A CD. Whilst listening to 'Make it Rain' I noticed that the Stevie Wonder sample 'Say Yeah' is missing, and the structure of the track is slightly different. Does anyone know the story behind this, and was this sample omitted from any vinyl versions of the album? Andrew