Think of a podcast as a blog with an mp3 attachment. To create a podcast channel, click one of the "add" buttons on any page of your website to add a blog element.
Once the blog element has been added, hover your muse over the word "blog" and click "new post." Give your podcast episode a title and write a description about your new episode in the content box. Click the advanced tab and scroll to the bottom of the page to attach an mp3 file for your podcast.
Click here for more detailed information from our help page.
How to use Feed Burner to syndicate your blogs and podcasts