You need to goto this location on your computer and edit a file called "hosts" if the activator is not doing it for you: C:\Windows\System32\drivers\etc
After this section:
# localhost name resolution is handled within DNS itself.
# 127.0.0.1 localhost
Add this:
81.89.101.206 ux.cga.net.ru
188.64.45.213 unix.secure.la
188.64.45.213 sc.utx.org.ru
83.169.1.213 home.ax.lt
(note do not add a # to the beggining of the ip address it will not work "81.89.101.206 ux.cga.net.ru" = correct "#81.89.101.206 ux.cga.net.ru" = wrong.
Please remember to give yourself access to edit the hosts file:
Right click > Properties > Security (tab) > Edit > chose your user name > Full Control