Here are the contact details for CFMDS, correct at the time hago won the 2001 Guitar Orchestra section.
CFMSD is a registered charity that is administered by a team of volunteers. For this reason, the principal points of contact change every year.
There is no centralised email address, and at the time this page was prepared, there was no website.
Their Syllabus is produced early in the autumn term, and the festival is held in February and March.
To learn more about the Festival, hago suggest that you contact a Public Library in Chichester or close by. The Guitar Section has traditionally been hosted by West Sussex Guitar Club, so that is another good starting point.