The Microsoft Global IME for Traditional Chinese requires the Microsoft Traditional Chinese language support. You can install this support from the Internet Explorer Add-On page which can be found by clicking the "Product Updates" item in the Internet Explorer Help menu.
Once you have installed the IME and rebooted your computer, place the cursor in an HTML edit area of Internet Explorer or in the message body of an Outlook Express mail message.
Using the multilanguage menu located on the taskbar, switch to the IME keyboard layout. Do this by clicking on the layout indicator on the right side of the Taskbar and selecting the Chinese (Traditional) icon from the menu.