1. Copy both files from 'Bosnian' folder to Library/Keyboard Layouts/
2. Open System Preferences > International > Input Menu
3. Check "Bosnian" in the list

'Bosnian' will appear in Input menu:



Icons created from coat of arms, as it looks better than flag in small dimensions.

Download:
http://rapidshare.com/files/26451208...Layout_Mac.zip