I have to clean install my computer and downloaded the new GHI SDK.
After the install I noticed that the firmware updater programs are no longer included in the SDK and I didn’t find any link pointing to the new firmware update software.
Finally I manage to find this link:
http://www.ghielectronics.com/downloads/NETMF/GHI%20NETMF%20Firmware%20Updaters.zip
And a beta downloadable tool that I didn’t try yet:
http://www.ghielectronics.com/downloads/NETMF/GHI_NETMF_Configuration_Toolv003.exe
I hope that this could help a new user wondering how to update the board.