The main Multilingual Mac FAQ Page has now been redone for OS X 10.5 Leopard. As I am still learning all the features of the new system, some parts may not be totally accurate, and they will be updated as soon as possible.
The Tiger page is still available here. It will not be updated further, but may be useful for people running that OS and for OS 9. Because Leopard no longer supports OS 9, the main FAQ page will no longer cover it.