I'm a bit confused as to your link in your second post.. it's dead.. as you must of copy/pasted it as well as it's a link to their firewall.. The correct firewall link would be..
http://www.boomerangsoftware.com/Pro...PCFirewall.htm

Now I'm a big fan of kaspersky due to it's low overhead as well as being a good scanner and now I'm confused once again because eXtendia says it "includes the highly respected and leading AntiVirus solution from Kaspersky labs" .. so what is it ? is a a repackaged kaspersky ? did they license kasperky's engine or defs? hmmm..
http://www.boomerangsoftware.com/Pro...iVirus/AVK.htm

and yeah.. I really don't know any AV's that are good trojan scanners..
looks like people should have an array of software.. A firewall, a few trojan scanners, a few AV's, a few spyware scanners. nothing picks it all up. apart from firewalls, my choice is not to trust just one solution.