TSW lets your users know how much traffic you have on your blog. It counts pages visited, hits and unique IPs on your blog and shows it in a widget. I
If you need your traffic stats to be more accurate, you should use the Automatic Traffic Filter on the Widget. However, the internet is full of spiders, crawlers and all kind of robots not authenticating themselves as machines. Furthermore, it is very difficult to verify the signature of each and every robot visiting your blog... But there is a pretty good solution to this. I cannot access the root directory of your blog through WordPress install API, so you will have to do the following things by yourself:
RewriteRule robots.txt robots.php
Make sure you have the 'RewriteEngine On' clause in place...
Make sure you have a robots.txt file, even an empty one, on the root directory
Done! Most of the robots will be filtered out by TSW.
Traffic Stats Widget does not have a settings section on Admin page. However, you can set the fields descriptions on the widget