Are there good places to get free audio books?

Not at all. You can either right click and download each file as an .mp3 or login and subscribe to an RSS feed for each one.

You can choose how you wish for each episode to be released (1 per day, week, all now etc.).

I use www.ziepod.com Ziepod free version to download them. It’s a fantastic little programme.

Just drag and drop after that. You shouldn’t need to use MP3tag to sort them. I’ve found them to play in the correct order every time.