Dear Lee
It's great that you're here helping people make their suresignal work. While you're at it, you may like to have a look at the vodafone eforum where one post on the Sure Signal troubleshooting thread has over 36 000 (!!) views. There are pages and pages of other threads from people trying to make this product work.
Meanwhile, Vodafone are giving incorrect tech advice, causing many people to undertake long winded and complex IT procedures that don't work, and the entire phone tech team (levels 1-3) have given up on it, and pointed all enquiries to the forum, where there are f