First: there is no need to fully quote the previous post (makes it hard to read; why to read it twice?)
Second: I suggest to move your topic to NITDroid thread, as
Third: you already messed it up.
Backupmenu depends on bootmenu, nitdroid (autoinstaller) on multiboot, bootmenu and multiboot are mutually exclusive.
Do not know about latest autoinstaller, but v0.0.8 just removed all not compatible stuff and flashes the nitdroid kernel (removing u-boot).
So again, please move to appropriate thread or open new one if you feel so.
You will have to decide: using u-boot (bootmenu) or multiboot?