Chances are is that Norton Flaged the software on a WS.Reputation 1 Detection
All this means is that Norton has never seen the file before and has no data on the version. So instead of asking you if you trust the software, it will delete it, unless you say other wise by taking the extra steps mentioned in the link below.
Here is how to correct he issue.
If you would like to read more on Nortan WS.Reputation 1
http://community.norton.com/t5/Norton-360/WS-Reputation-1-just-say-no/td-p/1003769
Traffic Browser is safe to use only if you download it from http://www.trafficbrowser.com .. Never download it from a third party website.