Norton Antivirus does not work.

I have recently got a new subscription (done automatic via online) trouble is after that it all went wrong. Norton SONAR kept Blue Screening my computer once that was disbaled it worked again. So I decided to see if there was an update (hoping to fix the SONAR issue) there was i updated and nothing appears to work. Next I use the norton tools to remove program for a fresh install after. Doing a fresh install from the web and after restarting my computer Norton still will not work. I tried to update via the website, when trying to auto detect couldn't find any norton product yet  i know it is installed on my machine. I m Runing vista home premium with service pack 2.  If i click on short cut nothing happens no error message just nothing. The build is 20.1.1.5

 

Please help as really need to get program working again.