Wordspew Ajax LiveChat eXtended 1.18 encoding problem

Hi! I have a problem. This plugin works fine when I leave a message in english, but my site has cp1251 encoding, so when I use cyrillic characters, they are written in mysql db in a wrong way (other wp data is written correctly). I tried to change UTF-8 to windows-1251 (or cp1251) in wordspew.php but it didn’t change anything. And I didn’t find any other encoding tags in code. Is it possible to force this script to write data in cp1251 encoding? And how I can do it?

Thanks a lot!

Vladimir.

p.s. I left the same message in author’s blog, but there are no replies for the moment so I’m asking you for help. ??