tu as bien suivi les instructions
Garmin MapSource format
Download Garmin-format, Part 2 - Topo Overlay (21.DEC.2007, 22.503kB)
You will need Garmin MapSource to use this version. Also see the Mini-Manual on how to use custom maps with MapSource.
For easy installation of both parts of the map, try the self-installing .exe version: Download Garmin-format, Self-installing Executable (21.DEC.2007, 25.851kB)
Old versions before 11.NOV.2006 should be uninstalled
To update an existing installation, it is sufficient to download the "road map" :Download Garmin-format, Part 1 - Road Map (21.DEC.2007, 3.696kB)
or "topo overlay" :Download Garmin-format, Part 2 - Topo Overlay (21.DEC.2007, 22.503kB)
parts as needed and unpack them to your installation directory,
replacing the old files (saves your and my bandwidth!).