You do not need to ask my permission to remix, podfic, translate, create art for or create any secondary fanwork of any fanwork I have posted.
Anything you produce in turn should feature a link back to my work and credit me by name (chestnut_filly, please), and please share the link to your work with me! I like to keep abreast of things, and it would make me very happy to know about it.
As to re-podding, that's between you and the author. I promise you I won't mind.