tetano

ok, on the mac it's a pain also, I was using a trial of norton antivirus, so I think it should be similar... you're using tiger, so in spotlight search for norton, and trash everything you find... then type symantec, and trash everything... you shall be logged as administrator to remove this stuff, otherwise you will be asked to prompt your admin password... if you can't empty your trash since norton appear to be in use, go to system preferences, remove norton from startup items in the accounts panel, log out and back in, and then empty your trash...
a good customizable freeware firewall for your mac is BrickHouse, check it on VersionTracker.com, otherwise, if you need just basic functions, use the OSX integrated firewall, it's good enough for basic users...