Ubuntu 9.04 was released on April 23,and many new features increased that  make it more convenient and friendly for user.

This tutorial will show you how to install it in winXP,you just need to download ubuntu 9.04 image file from the following link:

http://www.ubuntu.com/getubuntu/download

and then download Grub4dos :

http://download.gna.org/grub4dos/

1.Extract Grub4dos to C:\,then open boot\grub\menu.lst by notebook, add following at the end of the file

title Install Ubuntu
root (hd0,0)
kernel (hd0,0)/vmlinuz boot=casper iso-scan/filename=/ubuntu-9.04-desktop-amd64.iso ro quiet
splash locale=zh_CN.UTF-8
initrd (hd0,0)/initrd.gz

00011

where ubuntu-9.04-desktop-amd64.iso is the ubuntu9.04 image filename you download above.

Then open boot.ini(it is a hidden file,go to tools–>folder options,untick hide protected operating system file at view tab)and add following at the end:

C:\grldr="GRUB"

2.Now copy the image file (ubuntu9.04-desktop-amd64.iso)to C:\, then open it and extract .disk to C:\,do the same to casper\initrd.gz,casper\vmlinuz,make sure initrd.gz,vmlinuz is extracted to C:\.

3.Restart your computer and select Grub and go to Install Ubuntu,open a terminal and type following command when going into ubuntu:

sudo umount -l /isodevice

4.Click install on the desktop,then do what you do when booting up from a CD for ubuntu install in CD-ROM.