To subscribe to the podcast, you can add the link to the podcast feed manually to your favorite podcast listening program. If you need instructions, take a look at the article here, which explains how to do this with various programs.
You can also listen to the podcasts from the show notes blogs, either by using the built-in player, or by clicking on the direct links to the MP3 files.
Or, if you prefer to listen to podcasts on YouTube, the show notes blogs contain links to YouTube videos containing the audio for each episode (assuming YouTube hasn’t removed them).