I tried to go to the Regional and Language Option. Select tab Language then in the tab Settings, there is a drop-down menu but i can only find English (United States). When i try to add new language they prompt me for Windows XP cd2. But as far as i am aware there is only 1 cd for Windows XP. I have it. I tried loading it but they still want disc 2. Is there another way? What can i do?

I want to be able to type chinese and english and chinese interchangeably. I know about going to the control panel, and selecting regional language option, but I don't know how to go from there. When I tried changing somthing to chinese it gave me the whole chinese system thing like time, money, and etc. I'm confuse so please explain to me in detial. I have windows VISTA. Thanx!