It seems that you are having some issues with the SlingPlayer for Boxee Box application, since it does not work at a remote location.
If the Slingbox and the SlingCatcher are working in a proper way, this issue might be related to the connection speed you get in your cottage. With this in mind, I recommend you to check the following links:
Thanks ranaleon, I appreciate the your response. I checked the bandwidth requirements - I have 1.5 mps download speed so that shouldn't be the problem then for SD. Any other ideas on what I could try to get it working? The issue is when the player is loading. It seems to stall at about 90% completion. All other video streaming from the Boxee works fine including Vudu.