Route 66 Maps

[hugh jardon]

I Have a Trumpion using route 66 maps. The map is called Britain and Ireland.prm and dated 17/7/2007.
Is there a newer map I can get. or can I use a tom tom map on my sat nav.
I'm new to this and not sure about updating. Route 66 website is useless.
Any help will be much appreciated.
If this is the latest map that I have, I will send it to anyone who wants it.
Regards

[marginal]

I need the latest USACanada.prm maps please ...
It's for a Route 66 GPS.