cck custom module

Hello everyone,

I had a requirement to create a custom content type in D7 where the user can choose the title from a predefined select list.
I did create the content type but to my surprise the title field is not editable and no widget can be selected. However, I attempted to modify the title field by creating a module. I was successful to convert the title field to a select list with predefined options/values and it works fine when adding a new node. But when I try to edit an existing node, the previously selected title does not load but rather the default/empty option.

I've posted a general item regarding using CCK from custom modules here..

http://drupal.org/node/274894 - Custom module using CCK

Help in this matter would be appreciated (and generally useful).