Hi Try_Again, and thanks for your efforts...

The "Simple" Dell Reader does not need a dedicated partition. It simply installs in ANY partition, and "splash.idx" points to the folder of "CEFULL".

I think they integrated check routines inside the bios loader to prevent hacking, because the same loader is used for 2 different setups:

First is the free version you have, a totally crippled Splashtop.
The second is a full Splashtop (with a separate kernel file and lots of *.sqx addons) which they sell for big bucks together with an msata module . You cannot install it without the module (at least without hacking the installer) or use it without the module.

I thought the loader was standard but looks like it is custom made...