PID is the process ID - not the port number. You need to look for an entry with ":8080" at the end of the address/port part (the second column). Then you can look at the PID and use Task Manager to work out which process is involved... or run netstat -abn which will show the process names (but must be run under an administrator account).
Having said that, I would expect the find "8080" to find it...
Another thing to do is just visit http://localhost:8080 - on that port, chances are it's a web server of some description.