speed camera POI for TomTom go 300 v5.2

Thanks for all the help you guys gave me on my last problem - all sorted much appreciated. I am now trying to install the speed camera data base, I have followed all the instructions and the files seem to have been copied over correctly. Although I can see them in the Map folder, I cannot seem to locate them when I go to "Manage POI's" they do not appear on the list. I have read similiar threads but cannot locate a solution, any ideas please, your help has been appreciated.