My b2evolution Version: 2.x

And they help with not only the Russian version of b2evolution but all other technical issues as well. Excellent expertise and amazing efficiency! I strongly recommend these guys. You can find them at:
http://b2evo.sonorth.com/show.php/b2evolution-freelance-work

Backstory:
I encountered some serious problems trying to turn my site into a multilingual blog. Started searching the forums and then finally found a reference to b2evo.sonorth.com. Alex has solved all of my numerous technical problems. And very fast! I am very impressed by his work.