Open thread, and a research request - looking for French blogging tool

Does anyone out there know of a good, free, French-language blogging tool? It has to be something free, like blogger, that hosts the blogs for free, like blogger, BUT - and this is a big but - the instructions are all in French. Blogger has the main sign-in page in French, but the rest of the blog guts is in English.

Any Francophones or Francophiles out there with a clue about this? Thanks, JOHN

PS For the rest of you, open thread away...