Android - How to parse RSS Feed from .net website?

I'm using this method to read RSS Feeds from URL. Everything works fine except it fails to get feeds from .net webserver (eg. http://www.dotnetnuke.com/Resources/Blogs/rssid/99.aspx).

public String getRSSLinkFromURL(String url) {
// RSS url
    String rss_url = null;

    try {
    // Using JSoup library to parse the html source code
    org.jsoup.nodes.Document doc = Jsoup.connect(url).get();
    // finding rss links which are having link[type=application/rss+xml]
    org.jsoup.select.Elements links = doc.select("link[type=application/rss+xml]");

    Log.d("No of RSS links found", " " + links.size());

    // check if urls found or not
    if (links.size() > 0) {
        rss_url = links.get(0).attr("href").toString();
    } else {
        // finding rss links which are having link[type=application/rss+xml]
        org.jsoup.select.Elements links1 = doc.select("link[type=application/atom+xml]");
        if(links1.size() > 0){
            rss_url = links1.get(0).attr("href").toString();    
        }
    }

    } catch (IOException e) {
    e.printStackTrace();
    }

    // returing RSS url
    return rss_url;
}