"Seahenge - A Contemporary Chronicle" suggests not but doesn't say for certain. There is a picture on here from Moth from 2004, which is 5 years after time team's program.

A quick google reveals it was at Drove Orchards Farm, Thornham. (or Drove Farm Orchards). And... is this it on google maps? I think so...

http://maps.google.co.uk/maps?q=PE36+6LS&oe=utf-8&client=firefox-a&ie=UTF8&hq=&hnear=Hunstanton,+Norfolk+PE36+6LS,+United+Kingdom&gl=uk&ll=52.959313,0.559155&spn=0.001881,0.003272&t=h&z=18