When i'm going to russian sites all i can see are pics and squares instead of cyrillic symbols...Are there any solutions to fix it?
Not at this point - the Instinct does not have support for character sets other than english. Cyrillic, Big-5, any of the Unicode charactersets will simply display as boxes.
And that also includes accented letters, such as vowels (, , etc.). I learned it the hard way with the music player. It would stop and not play if the song title contained accented characters.
This is just not limited to websites. This also applies to anything that displays text on the phone. The Music Player for example has issues with playing Bjrk, but can handle Bjork just fine.