Adding "Custom Fields" to ItemAddAlbum in additon to ItemAddItem

HI, I have written a module that added a few fields in addition to the Title, Description, etc. I added the fields to the ItemAddItem screen with:

$ret = GalleryCoreApi::registerFactoryImplementation('ItemAddOption', 'BungeAddOption', 'BungeAddOption', 'modules/bungefields/BungeAddOption.inc', 'bungefields', array('ItemAdd'));

It works great for regular photos, but does not show up when a user adds an album. It *does* show up when a user edits an album. How can I add my template to the ItemAddAlbum screen?