How about this one -
http://www.sseru.org
It's the Stockholm School of Economics in St. Petersburg.
Offering Executive MBA.
The studies are in English, 2 years of about 7 modules (1 week) a year.
According to the last FT ranking it's the 16th in the world, 6th in Europe and 1st in Northern Europe (including Central Europe, East Europe and Scandinavia).
It gives quite a good education (I graduated it
)
The price is quite low as well - just USD 12 000 for the full course (the costs for the school are higher - ~ $34' for a student. But it's sponsored by several Scandinavian and Russian financial institutes).
If you want the full-time MBA I could advise St. Petersburg state University - num. 1 in Russia (out of the state educational institutions). The price is about USD 8 000 for two years. But the studies are in Russian. Anyway, if you wish the full-time MBA, I would advise you to go either to Insead (France) or Massachusets (USA) (maybe LBS will suit you, London UK). (especiallly if you have expeience in e-com)