I did it in:
http://civil.construaprende.com/-Paises/index.html

You can clic on different countries, and the feeds are newspapers news from each country

I did it in the following way:

I use Carp rss, for the feeds:
http://www.geckotribe.com/rss/carp/
Using the javascript option:
http://carp.docs.geckotribe.com/examples/js.php

Now, for the categories, I made a copy of
category.html
and renamed it
cat-example.html

Then, in cat-example.html:
Find:
<%if Category_Template and Category_Template ne 'category.html'%>
change:
<%if Category_Template and Category_Template ne 'cat-example.html'%>


And then log in to your gossamer links,
and browse to the "Example" Category, clic on EDIT
and write in CATEGORY TEMPLATE
cat-example.html


That's all