Malware removal help (HijackThis log included)

I'm trying to remove viruses/malware from a thuroughly infecte system. There are quite a few different things going on, the primary symptom is a small yellow triangle in the notification area that frequently pops up messages about security risks. Some of the warnings pop-up as balloons, others are in alert dialog boxes, and always asks if you want to download the last version of antivirus software. Here are the key elements of a few of the messages:

- Critical System Warning!
Spyware.Cyberlog-X

- Security Alert: Networm-i.Virus@fp

- Internet Explorer Alert!
Download additional software? Y/N

- System performance monitor: Warning

- Security warning: New variant of SpyBot@MXt

- Fatal Error!
Unhandled exception: ...
Download antivirus? Y/N


Also, this may be unrelated, but when I open AVG75free, Yahoo! Musicmatch Jukebox launches as well.

Thinking I was dealing with Trojan-Spy.Win32@mx I followed some removal instructions for that. I ran avg75free in safemode and deleted all the files it found, then ran SmitfraudFix and CCleaner. When finally running HijackThis, the instructions said to check and fix the following:

- O3 - Toolbar: Seekmo Toolbar - {53E0B6E8-A51D-448B-B692-40B67B285543} - C:\Program Files\Seekmo Programs\Seekmo Toolbar\SeekmoTB.dll
- O4 - HKCU\..\Run: [Weather] C:\PROGRA~1\AWS\WEATHE~1\Weather.exe 1
- O11 - Options group: [INTERNATIONAL] International*

However, none were listed after HijackThis finished scanning, so perhaps I was not dealing with Torjan-Spy after all...

Anyway, if anyone could help me out, I'm pretty stuck at this point. The HijackThis log is at the end if it's any help. Thanks

-Churlbong


Edit by chaslang: Inline HJT log removed. READ & RUN ME sticky not followed.