unicode problem.

Dear sir,
i have a problem with unicode and smart ftp, im using smart ftp version 1.0.982 and windows xp sp2 with latest updates from microsoft windows update. and my windows is english + arabic enabled.
when i try to download files from a public ftp site with strange eastern language (like chinese) it gives me error "550 Failed to change directory.
" and some times "file not found" but when i download these files from internet explorer directly it doesnt complain and everything goes fine

note: the site im downloading from is [url="ftp://ftp.runnet.ru/"]ftp://ftp.runnet.ru/[/url][/url]