How to install the linux in pre xp installed laptop

Dear Friends,

          I had a pre windows xp installed laptop with me i installed the linux in  that after installing the linux my windows is not booting can any body hlep with this

in a terminal type
su
then your root password

now type

fdisk -l

paste result here

also:

go to /boot/grub/menu.lst

paste contents here
you need to be using file manager super user to read this file

default=0
timeout=5
splashimage=(sd0,5)/grub/splash.xpm.gz
hiddenmenu
title Red Hat Enterprise Linux Server (2.6.18-8.el5)
root (sd0,4)
kernel /vmlinuz-2.6.18-8.el5 ro root=LABEL=/12 rhgb quiet
initrd /initrd-2.6.18-8.el5.img
title Other
rootnoverify (sd0,5)
chainloader +1
//////////////////////
Device Boot Start End Blocks Id System
/dev/sda1 * 1 19 152586 83 Linux
/dev/sda2 20 2569 20482875 83 Linux
/dev/sda3 2570 3206 5116702+ 83 Linux
/dev/sda4 3207 19457 130536157+ 5 Extended
/dev/sda5 3207 3337 1052226 82 Linux swap / Solaris

/dev/sda6 3338 5887 20482843+ c W95 FAT32 (LBA)

Umm.

This is rather odd. Menu shows Red Hat!

You say windows was already installed. So how come it’s at sda6 and it looks more like the format of a recovery partition?

Dear friend i try to revcover my windows parttion using fixboot and fix mbr
that time i formated my linux parttion and grub also. i copy from some another system i change the drive latters .

/dev/sda1 3338 5887 20482843+ c W95 FAT32 (LBA)
/dev/sda2 3338 5887 20482843+ c W95 FAT32 (LBA)
/dev/sda3 * 1 19 152586 83 Linux
/dev/sda4 20 2569 20482875 83 Linux
/dev/sda5 2570 3206 5116702+ 83 Linux
/dev/sda6 3207 19457 130536157+ 5 Extended
/dev/sda7 3207 3337 1052226 82 Linux swap / Solaris

some thing like it`s look on my system

Dear Friends,

      Any one give me the process to install linux in laptop with dual boot. i have windows vista home edition now  i need to install linux. i tryed  

but after linux instalation over my windows not booting help on this

if linux boots

in a terminal as su do

fdisk -l

and
if you are kde:
kdesu kwrite /boot/grub/menu.lst

or if gnome:

gnomesu gedit /boot/grub/menu.lst

paste all here

I think that you might have only vista installed and that you now want to install Suse on the same hard drive as vista. Is that correct?