I have set up my custom template folder in templates and languages. I have two sites and same problem on both.

I was under impression I could take the index.php file and copy it to my custom languages file. then zen would default over and use it. But it is not doing that. No matter what I do to the index.php file in my custom folder, it is still using the one in the original english file.

am i supposed to do something different? the documentation I have says the override system includes language files, so I must be missing something somewhere?