Deep Linking Assistance

Deep Linking is required for channel publishing approval. I'm new to Deep Linking as this was not a requirement when I last submitted a channel.
Is there anyone willing to assist us in adding the Deep Linking component to our channel?
The channel is very simple and straight-forward. We call our videos from XML files. I am familiar with changing the ContentID and Media Type in these XML files. 
What I do not know how to do is add the Deep Linking code in the main.brs file (and any other files that need modifications).

Thanks in advance!