Please download the Global IME of Microsoft and use it.
(You must use IE4.0 or higher.)
Download URL:
http://www.microsoft.com/Windows/ie/Features/ime.asp
for Macintosh users:
If you use MacOS 8.5 or higher, please install
"Multi Lingual Internet Access" and you will be able to see Japanese
characters.
If you use other MacOS, please buy "Japanese Language Kit" and install
it.