Parsing podcast rss problem

Hi,

I need to parse an rss feed for a podcast. I get this error 'prefix
<itunes> doesn't associate uri <> in tag <image>' when I use the
following:

--------------controller-------------------------
def podcasts
    require 'rss'
    require 'open-uri'

    @uffeed = RSS::Parser.parse(
http://urbanfusionentertainment.podomatic.com/rss2.xml’ )

end

-------------view---------------------------------

<%= @uffeed %>
  <% @uffeed.items.each do |item| %>
  <%= item.title %>
<% end %>

Does anybody know if I need to require different files for a podcast rss
feed or something as I can't find any documentation regarding this
online.

Many Thanks for your help.