Tell you what michaelm, this machine is still highly infected. I see several trojans here in this combofix log.

I also see that you are running multiple protection programs...which actually lessens your protection
AVG 8, Zone Alarm and the Earthlink Protection program which includes, among other things, and anti-virus program and a firewall. This means you have at least two anti-virus programs and two firewalls running. A BIG NO-NO. The rule is one of each on a computer. Right now I don't think any of them are working.

How long have you had all of these on the system? It appears at least the Earthlink program was installed around April 6. At the same time at least one of these trojans also appeared. So I would say part of the problem lies with the Earthlink security because there appears to be about a 5 minute timeline between the trojan entering the system and the Earthlink program being installed. Don't know if you downloaded it or if it came on a CD but I believe you should UNINSTALL all of this Earthlink security stuff for now at least until we can get this figured out. Right now you have way too much installed and running.

There is also some Trend Micro files on there, was this the online scanner or did you also install their antivirus program? This appears around April 15.
You also have at least a portion of Authentium's Command Antivirus program. This needs to go also.

1st.Uninstall all but ONE antivirus program and ONE firewall and frankly I would hope it would be the ENTIRE Earthlink Protection Program. Was there a reason you felt you needed all of these? Also in this same time frame you installed AdAware and Spybot. Now all of this was done BEFORE your original post here on April 25. How long have you been having these problems?

Let's try this another way.
Download, install, update and run an Anti-Trojan Application

TrojanHunter (30-day free trial)

Update it, then reboot into safe mode and run the program.

After you have uninstalled all and run the TrojanHunter program then run another combofix and post the log here along with a new HJT scan log.