Hello,
following this issue :
http://scplugin.tigris.org/issues/show_bug.cgi?id=126
here is a small explanation about Mac localization.
Instead of being directly in the Ressources folder, the .nib and
.strings files have to be in subfolders named
language.lproj
(English.lproj, French.lproj, German.lproj...) so Mac OS will choose
the right files to display.
.nib (interface files) are already localizable so they just have to be
organized in subfolders.
.strings files are used in order to replace strings that were hardcoded
(I think you have to use something like
NSLocalizedString
in your code).
Here is a quite complete help on internationalization :
http://www.stone.com/The_Cocoa_Files/Internationalize_Your_App.html
I hope this will help you.
I don't know much about making an app localizable as I'm only a
localizer, but don't hesitate if you have any question.
Thanks.