Got windows XP can't type

I am so happy that our IT department upgraded my computer to windows XP today. However, I am still not able to type in Chinese. The IT person tried to download language support from microsoft website. It did not work. I heard I would need a CD in order to do that, but apparently, our company does not have it or the IT person is not aware of it. Would someone please help me on this? Is there any way for me to be able to type Chinese without getting the service pack CD? Any website I could use to download it? Thank you very much and have a great holiday.