For those of you that need Chinese, Japanese, Korean, Thai language for the newer OS 5 builds, you can use these files..
MEGAUPLOAD - The leading online storage and file delivery service
I took it from the OS 5.0.0.190 build.
Copy the COD files to: C:\Program Files\Common Files\Research In Motion\Shared\Loader Files\9000M_v5.0.0.314_P5.2.0.19(Your OS)\Java
and copy the alx file to: C:\Program Files\Common Files\Research In Motion\Shared\Loader Files\9000M_v5.0.0.314_P5.2.0.19(Your OS)\
When you run apploader, you should be able to choose the east asian language support for the install.