Blogger had originally released a download for this in 2005, but just couldn’t get it to work. Now Office 2007 is supposed to let you be able to do that. I do not have Office 2007, but will soon and will let you know after I take it for a whirl.
I don’t typically use Word to compose my blogs, but some do. I prefer the Blogger control panel, but I do know of clients and our own ghost blogger who would really prefer to blog in Word.
Currently if you write your blog in Word and then try to paste it into the Blogger interface, you get funny characters, spacing problems, and headaches that you have to correct in the HTML of the post.
It will be interesting to see if this new Office 2007 add on will solve those problems.