Ah yeah - Codebard wizard will try to fix any issues with the installation, thats as expected. I will arrange specific instructions for doing beta with Patron Pro in future.
Audio and a few more post types can be supported only when the api starts returning their embed info and linked resources. When/if that happens, we can add support for those types in full. For now, they will come in only as text. But you can attach the file manually to those imported posts in WP post editor.