Thanks Hugo, I will look in detail at this tomorrow but meanwhile I have found that I can convert the XML data into a differnt format and import it into Google Earth.
Then, get this, it will animate flying along the route, dammit. In perspective. Bloody hell... I nearly came. What an incredibly sexy application of internet technology. (Dave, I found you have to click on a "Path" in the left hand treeview list thing, then click the Play icon... it's exactly what we were looking for.)
Here is a screenshot of the dodgy area, in Google Earth. Imagine that tracking along all smooth, like, for the whole of the route, turning to reorientate as needed.
Phwoarr!
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