Hi
as far as I know Exchange 2003 you can not acomplish your task as you imagine. In Exchange 2000/2003 a Form library supports only one language per library and OL always search custom forms in language-specific library... I am pretty sure about this since my clients uses English and Slovene versions of Outlook...
But you can install English forms to non-english Form library (my case; Slovene forms does not exisit so I installed English instead in Slovene Form library).
Even if you are using Office MUI, you must install language-specific Form library..
Robert Primozic
MCSE Windows 2003