FTP from Win2003 Server

On a Windows 2003 Server I can not access my FTP server over the Internet using the standard built in Internet Explorer browser. However I can access and use my FTP server from a command prompt on the same Windows 2003 Server. I have already tried adding my FTP servers internet address to the list of trusted sites. Any suggestions on using the browser to access an FTP site on Win 2K3 Server?