Just found out about it: Back in March 2010 RWD Mag published a Two Cover Star Wars Edition - Issue 97.
There is a Stormtrooper cover and a Darth Vader Cover
Distributed by JD Sports and it promotes the entire UK Addidas Star Wars clothing and shoes range.
A Nice collectors item and a great refrence guide for star wars collectors.

RWD Magazine
United Kingdom
Cover Story
NOP: ?