Language Support

Hi, i managed to make News Show Pro working with language support and Joom!fish.
That works fine, but only for the content items of the module (gk_image_show).
Only one line of code added to helper.php and an xml-file upload for Joom!fish content items.

My problem is, that the headlines "list_title_small" and "list_title_big" are configured and taken from the config within the module settings.

Does anyone have a clue how to implement support for a language file for the module?

Thanks a lot!
Peter