manually add linux entry to vista boot manager?

mbr = vista boot manager
-primary 1 - vista
--logical - xp
--logical - storage

if I install Linux, and grub into the Linux partition's bootsector (keeping Vista boot manager in mbr), how can I add a Linux entry into the Vista boot manager manually using bcdedit?
is it as simple as it was editing ntldr/boot.ini?
What would EasyBCD's Linux entry look like?
or does EasyBCD replace the boot manager with its own?