the partitioning is pretty standard as far as i know. i haven't heard that w2k needs to be partitions in any unusual way.
also, i've never used w2k myself, but everything i've heard says that you generally don't want to use lilo to boot 2k. w2k has it's own boot manager, which can be made to boot linux. for some reason, 2k goes all screwy when it doesn't have control of the mbr, no doubt a tantrum on the part of billy-boy.