Awesome! I'm glad my software has worked well for you.

The 'Lite-On RS232-TTL.jpg' diagram is nothing but a homemade CK3 lite-style spear. If you already own a CK3 and spear then all you need is a serial cable and you are set, nothing more is required to modify Lite-On drives.
Just follow the steps in the Lite-On modification process and you can modify any Lite-On drive just as easily as the BenQ drives.

Yes, that is normal, you need to have a 2GB flash drive or smaller to use FAT.
However, you can use FAT32 if you want, you just NEED to use the MS-DOS boot files instead of the FreeDOS ones (FreeDOS doesn't support FAT32 with my software, but MS-DOS does).

thanks frost! its cool that you take the time to answer all the normal joe soaps that use your software!