CSV 2 POST has been re-released at http://www.csv2post.com and the free edition should be downloadable on WordPress.org soon. However the plugin is being checked by the WordPress team at the moment and we are waiting for them to confirm that the plugin is allowed.
CSV 2 POST was previously a trial plugin, something we were not aware was against the WordPress policy here on WordPress.org. The whole trial approach or too much advertising does not go down well with the community, something we now fully understand and support.
CSV 2 POST was previously removed by the WordPress team. We felt the name "CSV 2 POST" was lost and went on to create other plugins. We still plan to release other CSV import plus data related plugins and improve existing ones.
If you have a look at the new CSV 2 POST when it is provided here on WordPress.org, you will see something very different from anything we released previously and probably very different from any import plugin.
Plus better :)