I think the move is technically called/spelled "tornillo." I found one picture of the seated version of the move at the following page:
w w w . descargacubana.com/lezioni_di_ritmica_file/el_tornillo.jpg
The move was also done by Chayenne & Vanessa Williams near the end of the movie Dance with Me. A couple of my friends are great at it, but personally I have trouble doing both the seated and the standing versions of the move, either because of my balance or my shoes. It's too bad that I missed seeing the boriken/africana version of it....
I think you're right Big10, "El tornillo". someone told me the name in a loud club so you can imagine how I got the spelling of the move wrong, especially since she's American hahaa! Yes I love Chayanne's version of it (oh boy that man )