New version of GD bbPress Attachments brings improved display of attachments count for topic and replies on the admin side in these post types editors lists, and adds new option that can disable attachments for any individual forum through added meta box option.
New features in the next versions will include upload errors logging and selection of the file types to allow for upload.
You can download plugin for free from Dev4Press or from WordPress.org. You have links bellow. If you have any suggestions or bugs to report, you can use comments or the forum.