I don't have this machine so I'm not sure if this is much help but here are a couple of links I found with videos and instructions for both of the software items you listed. One is a blog and the other is on the Janome website.
http://janomelife.wordpress.com/2012...-horizon-link/
http://www.janomespecials.com/mc1200...ilting-kit.htm - There is a video link on this page