Ok, I have done the following but still cannot unlock the maps

1. Patched the exe as shown
2. Started gps device and gone to the about screen and made a note of the device id
3. Started keygen and choose the product.def file for uk in the gbr folder of mappymap
4. I enter the device id in the box
5. leave serial number blank
6. click wygneruj
7. serial number box automatically is filled and unlock key is shown.
8. i start gps device and mappymap application.
9. it shows two maps installed polish and uk, i click the uk one that has the padlock.
10. i fill in the serial number as given on the key gen (it will not accept it if i leave this blank)
11. i fill in the device id given on keygen
12. i fill in the unlock key as given on keygen
13. i click ok
14. it says something ion polish but as nothing happens guess its saying its incorrect, either way it will not unlock.