Thefatboy......Thanks

I have been using the V10 map for a few weeks now and for navigating it works fine but there is an obvious problem with the search facility, so I would also like to install the V9 map.
My problem is I can't find an unlocked No Pain version I only have the locked version. Can anyone talk me through how to unlock the map for use on my nuvi 1340T bearing in mind that I am a real novice.

TIA.