With me, it's in that control panel applet indeed. Behind the Details button on the Languages tab. That can be used to enter both the language and the keyboard type.
How's that with you?
I find a lot of helpful information in the first page of http://www.google.com/search?q=xp+language+keyboard
The first hit, for example, is this: http://www.eduthink.com/winxpus_lang.htm
Hope this helps.
When I installed my genuine registered Windows XP-Pro with Service Pack 2, I was using an IBM English only keyboard. Recently I bought and installed the multi-lingual MS Office 2003 so that my daughter could work in Japanese. I uninstalled the English keyboard and installed a Japanese USB keyboard, which XP detected, identified and indicated that everything was fine. I then went to the Regional and Language section of the Control Panel and set up the Japanese options. I can indeed type Japanese characters using IME, BUT the keyboard layout is assumed to be the original English one and therefore a number of special characters do not line up with the location of those characters identified on the Japanese keyboard. Windows never asked me to specifically identify the layout of the keyboard or number of keys as I recall it did when installing the OS.
How do I get the system to recognize the keyboard as a Japanese keyboard layout? Do I need to change something in the registry or actually reinstall Windows XP to tell it I am using a different keyboard layout? I was under the impression that I could actually have two different keyboards connected and switch between them, similar to the way I can switch between languages to type Word documents.
If there is a simple solution to this annoyance (I have pretty much memorized where the special characters are located) it will be much appreciated.