What happened to HijackThis.exe? Before it wasn't in the temp folder, now it is.
Before you do anything else, please create a folder for HijackThis and put it in a permanent folder (like C:\HJT) instead of the Temp folder. Also move the backup folder it created out of there. This is required because HijackThis will create backups and we don't want them to be deleted.
Make sure to update Windows and Internet Explorer at
http://windowsupdate.microsoft.com.
Your log is clean. If you disabled System Restore, make sure to enable it now.
To help prevent future spyware installations/infections, please read the Anti-Spyware Tutorial
http://www.greyknight17.com/spyware.htm#prevent and use the tools provided.
Are there any problems now? If not, you should be set to go.