Microsoft has realesed the latest version of Internet Explorer 8 Language Packs for Windows Vista and Windows Server 2008. Language files can be used to localize the IE8 package.  

See also the Packaging Internet Explorer 8 posted by ErikW.

The Internet Explorer 8 Language Packs install language specific resource files, allowing users to view the user interface (UI) of Internet Explorer 8 in a different supported language.

Internet Explorer anguages (x64 and x86):

- ENU - English
- ARA - Arabic
- BSC - Bosnian (Cyrillic)
- BSB - Bosnian (Latin)
- BRG - Bulgarian
- CAT - Catalan
- CHS - Chinese (Simplified)
- CHT - Chinese (Traditional)
- ZHH - Chinese (Hong Kong)
- HRV - Croatian
- CSY - Czech
- DAN - Danish
- NLD - Dutch
- ETI - Estonian
- FIN - Finnish
- FRA - French
- DEU - German
- ELL - Greek
- HEB - Hebrew
- HIN - Hindi
- HUN - Hungarian
- ITA - Italian
- JPN - Japanese
- KOR - Korean
- LVI - Latvian
- LTH - Lithuanian
- MKI - Macedonian
- NOR - Norwegian (Bokmal)
- PLK - Polish
- PTB - Portuguese (Brazil)
- PTG - Portuguese (Portugal)
- ROM - Romanian
- RUS - Russian
- SRB - Serbian (Cyrillic)
- SRL - Serbian (Latin)
- SKY - Slovakian
- SLV - Slovenian
- ESN - Spanish
- SVE - Swedish
- THA - Thai
- TRK - Turkish
- UKR - Ukrainian
- VIT - Vietnamese

Link : Internet Explorer 8 Language Packs for Windows Vista and Windows Server 2008