ELP Brain Salad Surgery deluxe

No. The only way you can get the 5.1 surround mix is in the "super deluxe" edition.

Don't shoot the messenger. Razor & Tie/Sony mishandled the entire release.
 
That's what I found confusing- the Super one specifically mentioned it was surround, and IIIRC, the re-release of the debut had a surround version...but only of the new mix(which I didn't like). Too confusing.