Configuring GRUB to boot FC-5-i386-DVD.iso

[phil brogan]

Hello,

I am currently running FC 1 and want to install FC 5.  I successfully 
downloaded the FC 5 DVD install image FC-5-i386-DVD.iso, and sha1sum 
successfully matches.

Here's my fstab (the FC-5-i386-DVD.iso file resides on the /dev/hdd volume):

LABEL=/                 /                       ext3    defaults        1 1
LABEL=/boot             /boot                   ext3    defaults        1 2
none                    /dev/pts                devpts  gid=5,mode=620  0 0
none                    /proc                   proc    defaults        0 0
none                    /dev/shm                tmpfs   defaults        0 0
/dev/hdb2               swap                    swap    defaults        0 0
/dev/cdrom              /mnt/cdrom              udf,iso9660 
noauto,owner,kudzu,ro 0 0
/dev/fd0                /mnt/floppy             auto    
noauto,owner,kudzu 0 0
/dev/hdd                /hdd                    ext3    defaults        1 1

Here's my grub.conf:

# grub.conf generated by anaconda
#
# Note that you do not have to rerun grub after making changes to this file
# NOTICE:  You have a /boot partition.  This means that
#          all kernel and initrd paths are relative to /boot/, eg.
#          root (hd0,0)
#          kernel /vmlinuz-version ro root=/dev/hdb1
#          initrd /initrd-version.img
#boot=/dev/hda
default=0
timeout=10
splashimage=(hd0,0)/grub/splash.xpm.gz
title Fedora Core (2.4.22-1.2115.nptl)
    root (hd0,0)
    kernel /vmlinuz-2.4.22-1.2115.nptl ro root=LABEL=/ rhgb
    initrd /initrd-2.4.22-1.2115.nptl.img

How do I tell GRUB to boot from the file /hdd/phil/FC-5-i386-DVD.iso 
(where /hdd is the mount point of /dev/hdd)?

Any help would be appreciated.  Thanks!

- Phil