[IanUK]

Responstek form is here: http://www.cableforum.co.uk/board/ntl.php

Have you tried using port 81 for easynews ?
http://members.easynews.com:81/

or changing your route:
http://members.easynews.com:81/route/

The route change on port 81 will also change your NNTP route.

See if that helps.

cheers

Ian