Display events with default category.

I'm using Events+ and have added some code so that I can add events to default post categories. This works fine, however when I go to view the category page my event is not listed
This is the code that I have added to my functions.php file // use post categories for events

function wpa_categories_for_events(){
register_taxonomy_for_object_type( 'category', 'incsub_event' );
}
add_action( 'init', 'wpa_categories_for_events' );

function wpa_tags_for_events(){
register_taxonomy_for_object_type( 'post_tag', 'incsub_event' );
}
add_action( 'init', 'wpa_tags_for_events' );

// unset default event categories
add_action( 'init', 'unregister_cats' );
function unregister_cats() {
unregister_taxonomy_for_object_type( 'eab_events_category', 'incsub_event' );
}
add_action( 'init', 'unregister_tags' );
function unregister_tags() {
unregister_taxonomy_for_object_type( 'tags', 'incsub_event' );
}