Sorry about that.
Try this link and install this instead. RUn the Seagate SeaTools app and let it find your drive connected to your pc. The PC does not need to recognize it, just SeaTools.
http://www.seagate.com/support/seatools/SeaToolsForWindowsSetup.exe
EDIT: scratch that - here is the original link, follow the first instructions after you download:
http://www.seagate.com/support/freeagent/mobile-recovery-efigs.zip
FInally got the tool downloaded, clicked to sleep "never", hit "apply", clicked to "manage light" set to "off" clicked "apply"...ligth went off. Disconnected from PC and reconnected to 6ss and the light is back on? WTF?
REpeated the above procewss, and STILL the light is on.
Anyone successfully shut the light off? If so, am I missing a setting?