Im so sorry for the late repolay I was out of my country.
I installed the last FWVM version ( 2.65 ) following the istruction in the help file, exactily:
1) tar zxfv fvwm-2.6.5.tar.gz
2) in the new folder --> ./configure makeinstall and a reboot
3) after the reboot the icon in the START button was changed
4) Everytime I click on the START BUTTON in the console I have this message <<ERROR>> No such menu StartMenu
Maybe I have to edit a file to configure the START menu, but I dont know where.