In the Internet Options control panel (Tools=>Internet Options menu), on the
General Tab press the 'Languages' button which will display the languages
dialog. Press the 'Add' button which will display a list of languages for
which you can install IE menus for.
I do not see where to do this in regional and language
options. I am running XP Pro with all updates
installed. In hwlp, it says I need to purchase an extra
packet.