I'm going to install Red Hat Linux 9, but I'm trying to understand the notion behind this partitioning of drives. Heres the 411:

-I want to dual-boot, with XP Home as my Primary OS

-I have three partitions already, and they occupy the whole hard drive (meaning there is nothing unpartitioned)

-The current partition holding XP is Primary, at the beginning, and is 72 GB (out of 80). I want to install RH using some space I can unpartition from it.

-The other partitions contain backup images, so I prefer not to modify them.

Now, I'm using Partition Magic 8, and it has a feature that allows you to install another Operating System-- it does the partitioning for you, I assume.

I'd rather get input from the AO community than experiment myself. Can anyone assist this total Linux newb in setting up RH9?