There it is, 8080 and your browser looks for that one or any open one like in the 3000's or 2000's it can get when it needs it unless you tell it to use a proxy then you restrict it as what to use.
Nice you leave ftp open for me to hack in, and that mail server, nice! Thanks.
You are not serving http docs so why leave 80 open?
pop3 too how nice for me.
Your firewall is set up for a server, you better quit that crap. Who said to do that? Do these people you work for know you are doing it that way?
I was hoping you would find out for yourself, but I will spell it out, go get on a linux box, dial in (no firewall please), start netscape, browse for a while, open a shell, type "netstat -n" and post the first few lines here for us and tell us all about it. Think before you type, please!
Linux is a firewall, so you don't need one. Windows is the only reason for a firewall because it stinks as a real OS, or you may want one just if you are paranoid.
Glad you are learning, but remember you will never know it all. Read the man page on netstat and show us what you can do with it.