Hi, Nikolay,
It seems to be that Russian language does not work yet (using Etoys-To-Go), when changing the language from the tools bar, it tries to install the fonts (FontRussianEnvironment.sar), but they are missed, return an error.
However, the Russian translation is:
Make A Project: Начать новый проект Gallery of Projects: Галерея проектов Tutorials And Demos: Уроки и примеры
In the current timeframe, I'm afraid to say that non-latin1 languages is beyond our capacity. (It should work if we have the font file there, or on Pango.) But thank you so much for providing it and see if we can fixed in the future releases.
-- Yoshiki