Add an RSS Feed through the Microsoft Office Outlook 2007 Account Settings dialog box

  1. On the Tools menu, click Account Settings.
  2. On the RSS Feeds tab, click New.
  3. In the New RSS Feed dialog box, type or press CTRL+V to paste the URL of the RSS Feed. For example, http://www.example.com/feed/main.xml.
  4. Click Add.
  5. Click OK.

From:  http://office.microsoft.com/client/helppreview.aspx?AssetID=HA101595391033&ns=OUTLOOK&lcid=1033