Need help dual boot win7 & debian (BCD -> MBR)

I saw it was very easy with to dualboot win7 & debian if GRUB was in the MBR but since my teacher wants it the other way arround it's not usefull. Can anybody givee me a clue why c:\menu.lst (from neogrub.mbr bootloader) doesnt relate with /dev/sda3 /boot/grub/menu.lst (I HAVE COPIED THE ENTRIES AND THEY ARE EXACTLY THE SAME) :angry: