No offence jwoegerbauer, but I tried ceFFM on WinCe emulator and after correcting couple of Mortscript unclosed quote marks, I still got different Mortscript errors which I wasn't able to correct in a simple way. So I didn't dare to install it on my WinCE 6.0 Chinese GPS tablet at all. I also tried MioPocket Mini from here, it installed without problems on emulator. So I tried it also with the unit itself, but as it is still quite bloated and slow with heavy Mortscripts and also the interface probably needs some better graphics support, it's not very fluid. I ditched it and I am still using the original interface, which is fluid and through which after a very simple 'hack' of replacing some exe files and redirecting them through Mortscripts to run my own programs from SD, I can basically start any program.
I suggest You first point to Your navigation path configurator (every Chinese unit should have one) to 'desktop.exe' (You'll find it in gpspassion.com somewhere) and after running it You should be able to access the WinCE original interface and take it from there. Also before anything else, try to find out if it is possible to hard reset the device in case You get in trouble (probably not) and if it has a persistent registry (probably does), in which case You'll have to be VERY careful about modifying the registry. For example, my device has a custom shell, so if I would try to replace it with original shell from HKLMinit, it would brick my device as I have read others with the same device have 'successfully' accomplished. Most safe would be to continue to use the original interface, maybe if You need some additional programs You could launch the 'desktop.exe' any time from the navi shortcut and run the stuff from desktop.
Good luck.