Couldn't enable input locale indicator on the task bar

I'm trying to enable Chinese input on my win2000 SP3.
Somehow it doesn't give me the same option in 'Input
Locales' tap as suggested by microsoft.
After click 'Input Locales' in 'Regional Options' setting,
only useful button I get is 'Change...'. Unlike suggested
in windows' help, I don't get 'Add' button. I had to press
the 'Chang...' button to get a new dialog. Although I can
add the locales in the new 'Text Services' diaglog, I
couldn't find the 'Enable indicator on the taskbar'
checkbox anywhere. Also, those hotkeys for swith among
locales don't work.

Any ideas?

Thanks