This is just for the purpose of saving the files when the last two remaining sites are going down:
The firmware:
Note: Unzip into the root of your USB thumbdrive. Browse to usbupdate.html to update.
Please DO NOT power off the unit during firmware update, as it will render your unit inoperational.
HDX1000 Firmware 22-10-2009
HDX1000 Firmware 17-03-2010
HDX1000 Firmware 12-04-2010
The nmt-Apps
rename downloaded file to syb8634.nmt
copy to the ROOT directory of your USB stick
plug the USB stick, to the USB port above the LAN connector
Power up your HDX 1000
Access setup and maintenance and NMT setup wizard
………. chose USB update method
HDX1000 mnt-apps 15-01-2009
HDX1000 mnt-apps 16-12-2009
The Recovery firmware
(never used it so your on your own in how to use it)
HDX-1000 Firmware Recovery
UPDATE (04-05-2011):
Found a website to crossflash the HDX1000 to a popcorn A110
Howto : http://www.huubmons.nl/nmt/index.php?nmt=329
Forum : http://www.huubmons.nl/nmtforum/viewtopic.php?f=2&t=1430