This is how we go about adding an RSS feed to our forum activity, in Moodle 1.9 and 2:
Visit the featured projects page on the Scratch site, http://scratch.mit.edu/channel/featured. On the right, find the link labeled Subscribe with the icon Right-click on it with your mouse and choose Copy Link Location. Paste the link (http://scratch.mit.edu/feeds/getFeaturedProjects) into your text editor for later.
Ensure that Editing is on in your course. Go to the Scratch activities forum page. In the bottom right you will ...
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