Aaron Miles has pointed out that KLF Communications site is listing 4 Orb remixes I have never heard of:
Run of Run DMC - Praise my DJ's (Orb Mix) 4:15
Scott Brown - Johnny (Orb Mix) 2:08
Subsonar - Stand Strong (Orb Duat Remix) 8:10
Red 5 - Life Me Up (Orb's Up Remix) 5:39
Discogs lists only Red 5 mix, but claims that it was made by some other Orb, not ours. Don't know if it's true or not.
And also some sources claim that album All in a Day by hip-hop artist Backyard Dog features guest appearance not only by Alex Paterson, but also "by the late Kirsty MacColl, Steve Hillage, the Beloved and Jeremy Healy's Easy Posse."
If you have more info about these facts, let me know.