reinstall lilo after windows

[Rakotomandimby Mihamina <mihamina.rakotomandimby@etu.univ-orleans.fr>]

Hi,
I will have to reinstall my windows XP because I messed it up.
I know it will fire my bootloader (lilo on the MBR)

That lilo loads three linux installation at the moment (one Debian, one
Mandriva and one Fedora). They are respectively an hda1 to hda3. Lilo's
on the same partition as the Debian, and it's the debian's loader. The 2
other distros are loaded by that only one boot loader (they have not
their own)

The partition for the windows OS is ready and empty. It's hda4

I guess I will have to boot with some Debian CD to restore the MBR, but,
then,... 

Thank you for any link you would give.