Can anyone recommend the best way to change the default language in Sitecore 6.1. On a fresh install, the typical language for all items is 'en' English, witha nice little USA flag and all.
However, we are setting up a system which is targeting en-AU and en-NZ. When I rename the main 'en' language item in any database, every other item is left without a version in the "correct" language. I recall in the past that renaming this item causes an update across the whole system, but that didn't seem to be the case when I tried it today.
Is there an easy "Sitecore" way to convert all default items to the primary language en-AU? I've considered running a sql update script over the database, but am hoping there is a neater way of doing it.