The envelope should be addressed in Ukrainian. The letter could be written in English, and they should have no problem in finding someone to translate it for them. Computers are being used in the cities and towns, but the villages have no internet services. Sokolivka has a population of 1290. You may want to use this google program ... Russian language may be best to use ...
http://translate.google.com/#en|uk|
Using the same address that I previously sent you, send a letter to the following four people; Aleksandr, Mykola, Hryhorii and Vasyl. That way, you may receive a reply.
Ковтун Александр Сергеевич
Ковтун Миколай Максимович
Ковтун Григорий Матвеевич
Ковтун Василий Федорович
Good luck!