If you are an elite member in your airline’s frequent flyer program that is not Aeroflot or part of SkyTeam, you can have your status matched by Aeroflot Bonus for taking one flight on Aeroflot out of the UK, Germany or Japan. You must register with Aeroflot Bonus first and then fly by Dec 31, 09. You have until Jan 31, 10 to send copies of your boarding passes, e-ticket and copy of your other airline elite card to earn status on Aeroflot. Once approved you will have status with Aeroflot (and SkyTeam) until February 2011.
Full details can be found on the Aeroflot website.