Sorry, I don't have an account at rapidshare so the download expires quickly. If someone has a permanent place to host it, please let me know. In the mean time, I put it on megaupload.
All three files are included in the download.
The differences between the Gentouch and the Smartbook/DAWA/Dealextreme tablet have been discussed, but the Gentouch is a stripped down version of the other, nameless tablet. The Dealextreme tablet (as well as its incarnations from other brand names) has a working accelerometer, a front camera, and the mini HDMI output. It appears that the firmware is not quite the same for the two tablets, something to do with the touchscreen and possibly the battery circuity, so don't install Gentouch firmware on your DX tablet. Hopefully these differences can be figured out and compensated for in the future, allowing for universal firmware.
Although the hardware seems to be identical between the Smartbook, DAWA, and Dealextreme tablets, the OS builds are not identical. Evidently the newest Dealextreme tablets have some nice bugfixes, including a working market out of the box, and that is why I am posting the firmware files.