DDU-220 E-series firmware upgrade needed

[DrZaius]

http://www.sigmadesigns.com/faq_hwplus.htm states that I need to upgrade my Sony DVD-ROM drive, a DDU-220 E/C from firmware version 1.0c to version 1.0e

If you have ANY clue where to look for this please tell me 'cause I'm not finding anything.

PLEASE!
I BEG OF YOU. RESPOND TO THIS POST!