2. Select Regional and Language Options
3. Click Keyboards and Languages tabs. Click Change Keyboards...
4. Click the Add... button and search for Chinese (PRC). Check the box as shown in the above image and click OK.
5. Select the Language Bar tab and check the radio button as shown above.
6. There you have it =]
Note: Some uncompleted versions of Windows or 'Lite' Vista version do not have IME. I do not think IME is downloadable as it is already included with your windows disc.