Adding icon src to the dummy file

Hi there, I'm very much a beginner.

I use the dummy file for one channel that only shows one program a day. It works fine but, all the proper other channels grabbed with proper ini files, adds a <icon src="http://whatever.jpg" /> line into each programme.

Seeing as I only have one programme a day, I only need one programme .jpg to show. How can I add a static icon src into the dummy file so that I can produce and display the one single jpg I have on my server for this dummy channel?

Thank you,
Craig..