Need firmware eng.king.20100915.221729 or newer

[JuiCe]

Does anyone have or know how to get firmware eng.king.20100915.221729 or newer? I have 3 of these tablets, which all came with this firmware, but anxious to root, I applied the rooted v3 patch to one of them and noticed that the build is now eng.king.20100822.143725, and my accelerometer no longer works.

So does anyone know where I can download the newer build or how I can get the newer build off of one of the other devices and transfer it to the other device?

 

[JuiCe]

So I tried using..

adb pull /dev/mtd/mtd2 system.img

..on one of the tablets with the later build, and then flashing that to the other tablet, but apparently the size is too large. So I packaged it into a zip file along with an update script, and used Clockwork to install from sdcard. Unfortunately it just hangs on the loading screen, so I guess it didn't work. Can't anyone supply a system.img for a later build than 8/22?