I've downloaded "install_flash_player_7_linux.tar.gz" from macromedia.com, installed Takuo's "flashplugin-nonfree" package with dependecies (ruby, debconf), then ran the "update-flashplugin" script. All as root.
Nothing... The firefox browser reports "No plug-ins are installed".Tearing my hair out trying to get this to work. Can't understand it because I got it working fine a couple of weeks ago on a similar machine.