Apple recently emailed podcasters to remind them (again) about the requirements for being featured in iTunes. The language is very specific for easily misunderstood. I’ll explain this for you and tell you how you can change your podcast cover art or add some if you don’t already have it.
Learn what ID3-tagging software you can use (most free), how to enter ID3 tags, and taking advantage of iTunes fields for podcasting with PowerPress.
I take some time to answer questions on Audacity and podcasting.