Zeo Bedside unit (how to upload 2.6.3R firmware without my zeo website)

I am very interested in using the serial port on the back of my Zeo Personal Sleep Coach Bedside Display device. I see at a Zeo website: http://www.sleepstreamonline.com/rdl/starting.html

that I must download the firmware 2.6.3R (zeo.img file) onto the SD card which then evidently downloads the new firmware into the Bedside Display device. Is it still possible to do any of this without the availability of the myzeo.com website? Any advice or information that you could offer would be greatly appreciated. I am very interested in accessing the real time brainwaves data that are available from the serial port on the back of the Bedside Display device.