The adds servers to the Foxsat (http, frp, telnet, dlna, etc). It does not change the or replace the Humax settop application or user interface.
Read about it here http://www.avforums.com/forums/freesat/1599048-media-file-server-bundle-foxsat-hdr-release-4-0-part-2-a.html
The owner of the very large thread (raydon) is on holiday at present and so the first post has not neen updated with the link to 4.0.7 – the latest release – you should find that near the end of the thread.