linkyFollowing that link takes you to the UIM rebuild for a Duratec. the picture located furter down in the how-to(direct link below) shows what is the EVR. The pictures you asked about seem to be showing that same thing on your car (only it is a Zetec... but still..)

Anyway.. there is your mystery doo-dad you wanted to know about re: your email.
HTH
Ray