I went to France in 2001 and there were detailed maps and times available on the letour.com website. I was able to get a great spot in the Alps on a perfect day. (July 17, the day Lance gave Jan the look and won at L'Alp.)
I will be in Belgium for the first few days this year and have also not yet seen any maps, but I'm sure they will be available. There are many folks throughout Europe who want to know. I think there are lots of last-minute logistical nightmares to finalizing the route.