Well, apparently the pro edition should support this feature: http://www.nothing2hide.net/global-translator-pro/
fair enough. I’ll just use gzuncompress in the meantime…
the cache is compressed HTML code and can be converted only with the PHP function gzuncompress(); once the translation is edited, it can be compressed with gzcompress() again. this is very tedious, so it would be nice to have a plugin that could make this “translation improvement” more user-friendly…