Let's disable some unnecessary programs from startup...
Run a scan in HijackThis. Check each of the following if they still exist and hit 'Fix Checked' after you checked the last one:
O4 - HKLM\..\Run: [QuickTime Task] "C:\Program Files\QuickTime\qttask.exe" -atboottime
O4 - HKLM\..\Run: [SunJavaUpdateSched] C:\Program Files\Java\jre1.5.0_07\bin\jusched.exe
O4 - HKCU\..\Run: [MsnMsgr] "C:\Program Files\MSN Messenger\MsnMsgr.Exe" /background
O4 - HKCU\..\Run: [ares] "C:\Program Files\Ares\Ares.exe" -h
Restart the computer. Any better?
Your log is clean.
To help prevent future spyware infections, read the
Anti-Spyware Tutorial and use the tools provided.
Are there any problems now? If not, you should be set to go.