I am from BULGARIA (EUROPE) and my country didn't have a formal ARISS school contact. I will be very happy to understand how to make it... Thanks and 73!
This link should help you understand what is necessary.
Kenneth - N5VHO
Support ARISS http://www.amsat-na.com/donation.php (select "Human Spaceflight (ARISS))
If you responded "No" then please list the country and if you are considering making application.