Atahualpa RSS feed not working with event organiser plugin

Hi,

I am having problems making my RSS feed work with the plugin I am using ("Event organiser"), which is a great plugin for a blog with mostly only events posted. The problem is the rss feed provided by atahualpa refers to posts, while I would like it to refer to the events in my blog. The plugin documentation provides code for the rss feed to do just so, but I cannot seem to find where I should put that code within the atahualpa theme's RSS feed options to make it work.
Is there a way out of this?

By the way, thanks for your great theme and great forum - reading it has helped me out of most of my previous difficulties!

My blog's URL (still a work in progress!) : http://b-a-ba.info