Convert a blog to a podcast page??

Site URL: http://ww.jobydorr.com

Hello,
I need to know, is it possible to convert a squarespace blog to a podcast?
I started a blog page to provide info for an upcoming podcast and now I would like to host the recorded podcast episodes on that page.
In the squarespace directions it says the FIRST post on the page must be an audio block. Can I remove previous text blocks to make the first  post an audio block?
Can I post text blocks to the page after I convert it to a podcast page?

If I am not able to convert and I need to start a new page for the podast recording, will RSS subscribers who have already subscribed still get the info?

Thanks for reading

J