Hi mate
Sorry I didnt reply earlier. I saw it last night but seriously needed sleep
The firmware can be found here
http://groups.yahoo.com/group/Scan2000/
You need to have a Yahoo account to become a member but this is really easy to setup.
All the firmware is found under the files section. There is also firmware for the DVD drive itself under the section `Loader` which I found when I had both latest firmwares installed resolved every problem ive had with it.
Hope this helps