Effective May 2, 2012 all visa applicants have to
contact Russian Visa Center (ILS)
more information is here -
Transit visa is required if the period of stay in Russia exceeds 24 hours or a traveler needs to change the airport.
To apply for a transit visa, an applicant should submit to the Consular Division a completed visa application form, national passport, one standard picture, Money Order (see points 1-4 of General Information), as well as:
• Visa of the destination country;
• Tickets for the whole itinerary.