First some things to understand:
-DO NOT post 2 threads about the same topic
-Try and create a subject title that catches people's attention about your problem, not "VT Rules" or "Love my VT", it has nothing to do with the problem you are having and hence no one bothers to look. So next time create a subject title, refer it back to what you are actually wanting to know.
-Give people a chance to reply, we are not on here every single second of the day. People with the info you need may not get online for sometimes a week after asking it.
Now that we got that sorted, welcome to the forums
Might be a good idea to check the hand brake light switch to see if its faulty or the wire connecting the switch is not crushed or shorting somewhere. Also not a bad idea to take it to holden an see what they think (if you haven't already done so).