I just converted my posts from the default 'post' type to a variety of different custom post types based on what category the post is in. E.G. Posts in the "News" category are now a custom post type called "article_news".
Of course, with this my permalink structure changed, leaving me with a bunch of rotten links.
I backed up the database prior to conversion so it is possible to restore and repeat the process if necessary.
Is there a plugin or any method I could use to have these old links 301 redirect?