Originally Posted by Rango
That could be this one:
Does not work under Internet Explorer, does under Chrome and Firefox
Uses OSM (Open Street Map)
Can be uploaded into Mapsource or Basecamp
Seeks out offroad routes in the Benelux (Belgium, Netherlands, Luxembourg)
That would be the one, thank you - I was going a bit mad trying to find it. Now properly bookmarked.
I owe you a pint of ale next time you're out London way!