I am sure many of you have been trying to figure this out but I think I just did.
1. Install Destop Manager 4.2 SP2 (multi-language)
*you can get this from BlackBerry
2. Download and install the lastest Handheld OS from you service provider
3. Download and unzip the file I have attached (korean.zip)
4. Run app loader
5. Add korean.alx
This should do it. I just got my 8800 from T-Mobile to work.