I just used HostsXpert to restore the hosts file. Then I immunized with Spybot again to add Spybot's hosts entries and then I added my own. After scanning with HijackThis, the 01 entry is no longer present . Thanks, Broni.

Why do you think the 01 entry was showing in the HijackThis log anyway? Do you think my hosts file was somewhat corrupted, like Fink said?