Jetico will not filter referrers. You will need to set up your browser for this. Example: If you are using firefox, open firefox, go to: Tools~ Extensions~ "get more extensions" which will take you to the firefox add-ons page, and search/ install "RefControl"
WoW! Thank you so much for this information Stem! It is exactly what I was looking for. Going nuts trying to set it up through Jetico.