that addon saved my life. I had a problem with one import from vb to xf and around 20% of the images were missing. With this add-on I just reran the import for attachments and everything is there again.
Works great. Allowed me to re-import my attachments after I already imported my entire phpBB board over. Great time saver rather than wiping mySQL and root folder, just had to re-import again and skip every step until I got to the attachments!