Couchpotato + Sabnzbd Query

[Nickd]

Hi All,

Set up couchpotato and sabnzbd this weekend, seems like a great way to grab and automate downloads, less admin is a huge win for me.
A few minor issue have been bugging me though, so I was hoping there was an expert who could perhaps advise:

• We had a power cut, and when the pc rebooted the list in sabnzbd was stuffed - one particular file was completely gone from the dowloads list and I was unable to find it again.
• the file I mention above I had to then re-download, once this finished it didnt appear in the completed downloads section in sabnzbd and any attempt to extract the RAR files in explorer results in an immediate "corrupt archive" message - how can I try and fix this?
• Some files then seemed to lose their link from Couchpotato to sabnzbd and were appearing as red even though they were downloading in sabnzbd, Any attempt to re-add them in couchpotato simply added a new download to sabnzbd at the bottom of the list - does it not pick up the same download if it is queued already?
• How does one get sabnzbd to remove an item from its list via couchpotato? Lets say couchpotato automatically adds it and then you decide you no longer want the file - removing it in couchpotato does not seem to remove it from sabnzbd.
• Finally how is the directory and categorisation between the two apps supposed to work? Do I set up an "in progress" and "completed" folder in sabnzbd and then tell couchpotato to use the "completed" folder as its source for categorisation?

thanks, any advice would be appeciated.