None Are there any translation API, non-javascript?

[Google]

Hi, everybody

I'm trying to use GoogleTranslator non-javascript API as described at
http://code.google.com/intl/ru/apis/ajaxlanguage/documentation/reference.html#_fonje_translate

But I'm continously getting {"responseData": null, "responseDetails":
"invalid version", "responseStatus": 400}
error. Are there any ways to get what's wrong with my query?

I'm forming the following request header:
        req.Headers.Add("v", "1.0");
        req.Headers.Add("q", S);
        req.Headers.Add("langpair", "en%7Cru");
        req.Headers.Add("format", "text");
where S is the string-to-translate.

Could you please advise me on it?

Thank you.