Bot is "fully internationalized". At its page on Meta [1] you may check translations in other languages. Primary, I used Wikipedia interwiki links for getting translations and I got translations for all wn languages. However, I already see that some translations are not so good. Also, if there is no translation, default value is name in English.
You may do whatever you think that it is correct with the right side of dictionaries. For example, if you want to change "Administrator" to "admins" in English, do it at the right side of translations['en']['Administrator'], but don't change key value.
Today or tomorrow, I'll open accounts (and bot accounts) on all wn wikis, which means that I'll be able to start with adding statistics at other wikis from the beginning of the next week.
Until that, it would be good to hear if some communities don't want those statistics. (However, I'll check for approval for all communities before I include particular language in the bot job.)
Presently, bot is working on English [2] and Serbian Wikinews [3]. This means that interwiki links for other languages don't work. In the next few weeks I'll remove interwikis which don't exist.
[1] - http://meta.wikimedia.org/wiki/User:Millbot/translations.py [2] - http://en.wikinews.org/wiki/Template:Statistics [3] - http://sr.wikinews.org/wiki/%D0%A8%D0%B0%D0%B1%D0%BB%D0%BE%D0%BD:%D0%A1%D1%8...