You know you will need, before or after, to add your own custom RSS feeds to your Magento.
For example, I needed to create some custom RSS Feeds to list bestseller products by date (bestseller weekly, monthly, etc…)
How to do it? It’s quite complex but not so much if you follow this mini tutorial:
First of all, you need to setup a new namespace directory under your “local” dir, this will overwrite your current RSS Mage methods but not all.
So, create your directory app/local/Simplicissimus/Rss. (change Simplicissimus with your own Namespace and change it everywhere)
Create inside it the following directories:
Starting with the configuration XML, you need to create a file etc/config.xml like this: