Thanks all for the input. I did find that I should be using one of these cards. KD37-66-EZ1, KD37-66-EZ1A, KD37-66-EZ1B, KD37-66-EZ1C, KD37-66-EZ1D.
I email support on TomTom and they did say I have the wrong card and they will refund the map pack I just bought. So I have a case on eBay for...