IMPORTANT QUESTION ABOUT ZONE ALARM AND VISUAL ZONE

ok i just want to know how can i tell if i have been hacked by just looking at the domain service name and ip address? im running zone alarm and visual zone. if you dont know what visual zone is here is the site: http://visualize.phenominet.com/visu...visualzone.htm , do any computer experts know if this program works well, i think it does because you can look up the ip address of any intruder, and it logs everything which is a good thing