i think that by using partition magic things would be much more easier for him.i mean he is a newbie just like me and it is better having your disk partitioned before you try installing linux.
i mean that you can easily get confused when trying to format the hdd during the installation.
if you are planning to keep the xp partition,i would suggest you not to install lilo on your mbr.just have it on a floppy.cya all!