If you like to remove any playlist from your iPod/iTunes via Ziepod, follow the steps given below:

• In this 'Subscriptions' tab, make a right click on the playlist you like to delete
• From popped up menu, select 'Delete Playlist' menu option
• Ziepod will ask your confirmation. Press 'OK' to confirm deletion; otherwise click 'Cancel'

Keep in mind that since by default Ziepod does not update your iPod but iTunes, you will not be able to see this change till you update your iPod manually.

If you don't like to update manually each time, you can set Ziepod to automatically update your iPod after any action you perform, such deleting a playlist as in this case.