I know this Vanity 6 track has a great remix on an official 12".Since I don't have the Turn it Up book, does anybody know of any other Prince associated artists that released 12" remixes during the 80s? Langbleu or Gitto may know this.Thanks.

There's also an extended version of "He's So Dull" which is pretty cool.

Quite a bit of remixes in the Eighties Actually:

Apollonia 6 - Sex Shooter
Sheila E. - Belle of St.Mark; Sister Fate; Koo Koo; Love on a Blue Train; Hollyrock
Jill Jones - Mia Bocca; G- Spot; 4 love (amazing, by the way)
The Three O'Clock - Neon Telephone
Wendy and Lisa - Lolly Lolly
Sheena Easton - 101; Sugar Walls
Patti LaBelle - Yo Mister
The Family - Screams of Passion
Madhouse - 6; 10; 13

I'm sure i'm probably forgetting something.
If you haven't heard any of these, you should, so let me know, i could help you out