This will plot tracks from any GPX file using the Google Maps API. The start of each track and all waypoints should appear as pins. The map will centre itself on the last feature in the file. There is no cacheing, we don't want your data here. (We might want your data here).
If it's not working for you, here is a screenshot, using http://www.tom-carden.co.uk/googlegpx/newforest.gpx as an example.
NB:- long tracks might cause the browser to hang, but we're working on it.
Tested successfully with IE6 and Firefox under Windows 2000.