Character set problem when update mysql db

[samfisher]

I use 1.0.0a2 on windows xp pro sp2 platform
with following related soft:

mysql version is 4.1.10.
Apache server version is 2.0.54.
php version is 4.3.11.

when I post an issue with Chinese content, the data was
not saved correctly. In Apache error log I found the
following message:

Character set '#33' is not a compiled character set and is not specified in the 'c:\mysql\share\charsets\Index' file
File 'c:\mysql\share\charsets\?.conf' not found (Errcode: 2)

Actually I installed mysql on D:\tools\MySQL\MySQL Server 4.1
Could any one give me some advice? Thanks.