Well, this is in the 'readme' for the application:
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Just unzip the contents onto the root folder of your TomTom (remember backup!). When you restart
your TomTom you will have two additional icons in the main menu that you can use to turn on and off
static navigation. Note that after you've pressed one of these icons, you must turn the TomTom off
and then back on again (using the power button). If you don't do this, the navcore application will
not read any GPS data until you do. A full reset (with the "hidden" reset button) will restore
the default setting, turning static navigation on again. It may be restored by other occurrences
also, but I am not sure about that. It is easy to identify whether it is on or off by looking at
the GPS status screen. If the position and/or the direction moves when you are stationary, then static
navigation is off.---------------
So, have you followed the instructions precisely? It seems to me that the two icons you need should appear if the steps are followed.
Then again, since I haven't tried to install, there may indeed be a glitch. Dunno. Why not direct a query to the user at gpspassion. He may be able to assist.