No I’m sorry but here at wordpress.COM we do not have FTP acces and we cannot use plugins. Also note that we can only use RSS feed widgets in our sidebars and not on Pages or Posts. WordPress.com does not allow blogs (splogs) to be created by any automatic means.
If that’s what you want you will be best served by hiring a web host and getting a free software install form wordpress.ORG. This support entry sets out the differences between the two. http://support.wordpress.com/com-vs-org/