Having trouble viewing posts from a new custom post type? Are you only seeing “Nothing found” or your 404 page?

Try re-saving your Permalinks structure.

This has come up a few times when I’ve used a custom structure for my permalinks (/%postname%). For whatever reason, re-saving your permalinks settings allows posts from all post types to show up at their proper urls.

Need help setting up custom post types? This article from Smashing Magazine will get you started: How To Build A Media Site On WordPress