Ubuntu 8.04 & Windows XP dual boot

I want to install both Ubuntu 8.04 and Windows xp sp3 on my laptop. Here is a good step by step guide : http://apcmag.com/how_to_dual_boot_linux_and_windows_xp_linux_installed_first.htm?page=1

The guide is at the case where you have Ubuntu 8.04 os installed and you want to also install Windows Xp..

.. and some reminders:

- be sure the cd is clean :)

- do not forget to enable boot from cd & set sata mode to ide (from bios)