using amarok 1.4.5 on kubuntu edgy

I see how to manually delete the downloaded content of a single episode, but then the episode icon changes back the original icon.

How can you keep track of listened and yet-to-be-heard episodes? 

I do not see a way to remove episodes one at a time.

For instance, I have episodes 24-33 of Linux Action Show queued up to listen.  I dont want to setup a "Keep only 3-4 episodes" because I do want to listen to all of these.

What is the difference between the ! with red halo, and the ! icon. 

Thanks

The workaround I have started using is:

If I have 15 episodes of Linux Action Show I want to hear all the back releases, I just reduce the number to keep by 1 after each listen, then I can get it to 1 or 2 and then stay current.