I quite like your software. Very convenient.
I'd say that what I miss most is a simpler way to modify an episode.
For example, instead of going via the admin, it would be great if the software could check if the user is logged in and - if so - add a tiny "modify" link under each episode in the episode list. It would link directly to the admin part where one can modifiy the title, the description etc...
I've tried to look into the admin.php and the editdel.php files, but my knowledge of php is not good enough.