You're missing the program "Bootmenu".

Hit HAM (package manager) and search for "boot" and you will find a boot menu (in extra's Devel).
bootmenu.d is a location that bootmenu makes.

Bootmenu



Edit: DJ Steve! THIS IS GREAT! I have finally got it running after around 20 kernel flashes and an entire N900 PR1.2 reflash
IT IS GREAT!!!!

You have mentioned a few pages back that you are looking for requests:
I have 2:

Overclocking in the kernel for Maemo.

Dualboot without RD mode.
Only asking for the RD mode part because having it running all day is killing my battery, but I would like to boot into Android throughout the day... because it's great (well.. Maemo is better!!).