It's available on vinyl only - white label.
Fleetwood Mac - You Make Loving Fun (Trailmix Remix)
http://www.mediafire.com/?fmwzkyddjxw
For 80 other FM/SN remixes, plus a few cover versions (Ryan Adam's cover of Dreams, etc.) and Radiohead's really interesting "Stevie Nicks Vocal Remix" of their new single, see The Stevie Nicks Remix Project thread in the SN forum.