This should not matter too much.. There are several Webinators operating
successfully in Russia. See the search at http://www.rcnet.ru/ for example.
Do a search for "Cyrillic" on the support archive at
http://www.thunderstone.com/texis/webinator/listproc/
The issues and resolutions of Cyrillic Webinator indexes discussed there.
You might also wish to ask Andy Savchenkov (a.savchenkov@rcnet.ru) how
he has solved his Webinator issues.
Happy Holidays,
Thunderstone