Would have thought that it would be best to give the information to a broker and let them see what they can do. There are plenty of insurers listed in the back of motoring mags who say they insure high risk drivers, so would imagine that a broker would find you someone.
All I would say is that when a broker finds you something, make sure you check the proposal form they send you to sign. I had one come back saying that I didn't ever drink and various other nonsence, which I changed and sent back. I think they have stock answers they use to save time!