Here is KMZ file for Stage 21 (Final Stage) Route Map with path/point/distance info.
Stage 21 - Sunday, July 24: Corbeil-Essonnes - Paris Champs-Élysées, 144 km
REVISED - the route path for the final circuit in Champs-Élysées was revised per this map from Paris Pref Police for TdF2004.
This is the final stage for Tour de France 2005, as well as the final run for Lance Armstrong. Some of superstars in professional sports does retire a couple of times in their career... so will this really be the final for him?
Anyhow, this is the last parade of this year anyway. Many of riders will rush for the final stage winner.
The route path is slightly modified around the circuit in Champs-Élysées, refering lucifer666's path file (thanks!) and the map below from J SPORT:
Finish:
Also, placemarks to link geotagged flickr photos of famous landmarks in Paris are included to this route map.