Looks clean! However, you may want to fix this entry if you didn't set the IE restrictions yourself...
O6 - HKCU\Software\Policies\Microsoft\Internet Explorer\Restrictions present
This could be something that one of your infections did. If you did this, then don't worry about it. Another thing...you don't have a firewall running. This could very well be how you got infected. Windows XP SP2 comes bundled with the Windows Firewall, but its protection is subpar. You should get a more advanced free firewall such as Comodo, ZoneAlarm, or Kerio/Sunbelt. Just find the one you like, download it, disconnect from the internet, disable Windows Firewall, install your new firewall, and restart. Once you've done that, you'll be much safer!