rickenbacherus is correct, put your lilo (or grub) bootloader on your root partition, NOT your mbr. I have used older versions of bootmagic and it worked fine.

Note: partitions made with PartitionMagic may not be compatible with other partition applications (DOS fdisk or linux fdisk, cfdisk, parted, etc.), so don't forget that if you create partitions on a drive with PM you may have to use it from that point on on that drive. I ran into this problem myself, I had a 20GB hd with a 9GB FAT32 partition and several ext2 partitions. I put the drive into my wife's computer and could not install windows on the 9GB partition, other partition apps saw it as a 2GB partition, finally after hours of running scandisk, and using another app the FAT was fixed and I was able to copy the partition and keep all of the data and then was able to re-partition and rebuild the drive.

rock