Does anyone have a copy of the PHP file for the http://www.mybook-linux.co.nr/ hack or exactly what it does. I'm not that keen on installing an update that I don't know what its doing!
At the bottom of the Enabling SSH Access page on that site, is the FAQ which has a question "SSH Source Code". That's what is executed to enable SSH or "Upgrade the firmware". Nothing is actually upgraded, just SSH is enabled temporarily so you can go in and change it so SSH always comes on after reboot.