Yeah, the feeds are currently gone. In my wrestling with the sidebar, I decided to nuke it until things settled downa a bit -- TOO MANY VARIABLES TO KEEP TRACK OF.

The process of getting the feeds installed is terribly simple:

Use this plugin: http://mt-plugins.org/archives/entry/rss_feed.php

Plug in this feed: http://rss.news.yahoo.com/rss/mostviewed

All the Yahoo feeds are here: http://news.yahoo.com/rss