Seeing as Tubetrack no longer works I've had a go at writing my own.

It's based on the layout of Tubetrack rather than the layout of NRES
Windows Vista Gadget, which doesn't seem to suit the Dashboard. It
doesn't save your selected station yet and it doesn't search station
names yet - the only way to change the station is to give it the 3
letter NRS code.

It's my first attempt at writing a widget and my first attempt at
writing substantial JavaScript (which I've been learning as I go along).
It has some problems, which I haven't yet solved (resizing the scroll
bars for instance). Therefore it should only be considered test quality
software - use it at your own risk.

If you have a Mac (it's not a Vista Gadget, it won't work on Microsoft
Windows) and you'd like to give it at try it's available for download at:

http://www.phardy.karoo.net/NationalRail.zip

A screenshot is available at:

http://www.phardy.karoo.net/widgetscreenshot.png

Philip