Can't get RSS feed to work

Hi, I'm having trouble getting the RSS feed for a category on my EasyDiscuss forum to work. When I click the "Subscribe via RSS" link it takes me to a page with a lot of code (http://enoughabuse.org/index.php/trainers-discussion/index?format=feed&type=rss) but when I enter that URL into an RSS reader it says it can't find the feed. When I go to check a feed validator it says that it's not actually a feed at all, it's a web page. That being said, when I tried to subscribe to the feed using Internet Explorer it did display as a feed originally but when I went to 'look' at my subscription it said it didn't support DTDs. (Not sure if related/helpful.)
Also, if it makes a difference the discussion forum is only view-able by registered members.
Thanks!