Have had confirmation that Graham's mix is the one I thought it was, so the record is labelled correctly. Meaning that iTunes seem to have mislabelled the mixes. Meaning that if you want to purchase the Masseymix on iTunes, you have to pick the Paddy Steer mix. Confused? This is what it says on iTunes:
09 Clap Hands (Paddy Steer) [Bonus ...] 06:07
10 Clap Hands (Massey Remix) [Bonus ...] 05:05
But in reality they are mixed up, so the one labelled Paddy Steer (06:07) is in fact the Massey mix and the one labelled Massey mix (05:05) is in fact the Paddy Steer mix.
Incidentally, both mixes are fantastic, so you can safely buy both!
Of course if anyone reports this to iTunes (Graham, Denis?) and they fix the glitch, let us know here please.