How to make triple boot work?

This was one of my personal project to make triple boot work on a laptop. For that, I first created 4 fdisk partitions (2 for windows, 1 for fedora, 1 for OpenSolaris). I installed windows first, then fedora (without grub) and then finally OpenSolaris. OpenSolaris's grub.lst file needed some tweaking to make triple boot work. Here is what I edited in grub.lst file.

WARNING: Please dont try this on any system which contains some data without data backup because it can be disastrous as well :)

#pragma ident "@(#)menu.lst 1.2 07/01/10 SMI"
#
# default menu entry to boot
default 0
#
# menu timeout in second before default OS is booted
# set to -1 to wait for user input
timeout 10
#
# To enable grub serial console to ttya uncomment the following lines
# and comment out the splashimage line below
# WARNING: don't enable grub serial console when BIOS console serial
# redirection is active!!!
# serial --unit=0 --speed=9600
# terminal serial
#
# Uncomment the following line to enable GRUB splashimage on console
splashimage /boot/grub/splash.xpm.gz
#
# To chainload another OS
#
# title Another OS
# root (hd,)
# chainloader +1
#
# To chainload a Solaris release not based on grub
#
# title Solaris 9
# root (hd,)
# chainloader +1
# makeactive
#
# To load a Solaris instance based on grub
# If GRUB determines if the booting system is 64-bit capable,
# the kernel$ and module$ commands expand $ISADIR to "amd64"
#
# title Solaris 
# root (hd,,x) --x = Solaris root slice
# kernel$ /platform/i86pc/kernel/$ISADIR/unix
# module$ /platform/i86pc/$ISADIR/boot_archive

#
# To override Solaris boot args (see kernel(1M)), console device and
# properties set via eeprom(1M) edit the "kernel" line to:
#
# kernel /platform/i86pc/kernel/unix  -B prop1=val1,prop2=val2,...
#
#---------- ADDED BY BOOTADM - DO NOT EDIT ----------
title Solaris Express Community Edition snv_86 X86
kernel$ /platform/i86pc/kernel/$ISADIR/unix
module$ /platform/i86pc/$ISADIR/boot_archive
#---------------------END BOOTADM--------------------
#---------- ADDED BY BOOTADM - DO NOT EDIT ----------
title Solaris xVM
kernel$ /boot/$ISADIR/xen.gz
module$ /platform/i86xpv/kernel/$ISADIR/unix
/platform/i86xpv/kernel/$ISADIR/unix
module$ /platform/i86pc/$ISADIR/boot_archive
#---------------------END BOOTADM--------------------
#---------- ADDED BY BOOTADM - DO NOT EDIT ----------
title Solaris failsafe
kernel /boot/platform/i86pc/kernel/unix -s
module /boot/x86.miniroot-safe
#---------------------END BOOTADM--------------------

title Windows
rootnoverify (hd0,0)
chainloader +1

#title Windows
# rootnoverify (hd0,1)
# chainloader +1

# Unknown partition of type 5 found on /dev/rdsk/c1t0d0p0 partition: 4
# It maps to the GRUB device: (hd0,3) .
title Fedora
root (hd0,4)
kernel /vmlinuz-2.6.23.1-42.fc8 ro root=/dev/VolGroup00/LogVol00 rhgb quiet
initrd /initrd-2.6.23.1-42.fc8.img