win98+winnt+linux

My system configuration

Cyrix 233 MMX

HardDisk Seagate(20GB) PrimaryMaster
Seagate(2.1GB)SecondaryMaster
Partitions

In 20 GB
C=2GB;E=2GB;F=4GB;G=9GB;H=2GB
In 2.1 GB
D=2.1GB
Operating Systems
C= WIN 98;E=WINNT 4.O SERVER

I want to install RedHat Linux 6.0 as my third OS(MultiBoot) on ‘H’drive
what is the procedure i should follow?