Just to add a bit more confusion - during a visit to Rendlesham forest circa August 2004, I happened across some black magic type symbols - things hanging from trees and pentagles created from sticks. They were in the large cleared area opposite to and across the road from, the Woodbridge landing lights. I've got some phots of them somewhere. If I can find them I'll post a couple of them....could it be - and this is a huge long shot - that such activities were taking place in Dec 1980? Apart from the obvious connection, Christmas is also related to a pagan festival and is celebrated in many ways, including (I believe) Wiccan type rituals.
Puddlepirate
These may have been connected with the theatre group Red Rose Chain, who sometimes do open air plays in the forest. They did a few on the UFO story and used quite a lot of "Blair Witch" style symbols in the publicity.
2003 - 2004 sounds about right to tie in with this.
Adrian