Evan

You’re on the right track, the first hook you’re using to publish your custom post type is {$new_status}_{$post->post_type} see {$new_status}_{$post->post_type} which relies on the first argument to be a status (draft, publish, new, etc…), however there is no delete status, and custom post types still get deleted with the delete_post function.

Here is the delete_post hook in its habitat: delete_post. So as I mentioned you were on the right track, but you’re attempting to use $post when its a null variable/object still. Your code should look something like:

add_action('delete_post', 'my-function-on-delete');
function my-function-on-delete($post_id) {
    $post = get_post($post_id);
    if ($post->post_type == 'my-custom-post-type') {
        //My function
       }
}

By default action hooks expect the first argument to be passed.

Are you able to get tweets from twitter? If you are, it may be that your application is setup on Read only mode (thats what happened to me).

Unfortunately simply going into your application’s settings and changing to read+write won’t fix it right away since twitter doesn’t update its access tokens when you do this. After you change your access settings you’ll have to go to http://twitter.com/account/connections click ‘revoke access’ then ‘undo revoke access’, this updates the Twitter oAuth tokens. Once you’ve done that you can go ahead and copy and paste the new tokens in your Twitter Tools settings and hopefully it should work.