I put that navcore on the tomtom years ago and at the time I read this was the one to use
I found this on the net a day or so ago : United Kingdom and Republic of Ireland 955 6747 OR
United Kingdom and Republic of Ireland 955 6747 with Automatic Installer & Patcher
I downloaded Automatic Installer & Patcher file which was came down as a exe and a rar file
I ran the exe had to choose the drive Name for my TomTom and it installed it but my tomtom said it did not work with mine.
I am unsure if it patched it but after it installs the map it does open a dos window and says metadata updated