Собственно вот:
C:\Documents and Settings\Андрей\Application Data\Opera\Opera\global_history.dat
C:\Documents and Settings\Андрей\Application Data\Opera\Opera\download.dat
C:\Documents and Settings\Андрей\Application Data\Opera\Opera\vlink4.dat
C:\Documents and Settings\Андрей\Application Data\Opera\Opera\typed_history.xml
C:\Documents and Settings\Андрей\Application Data\Opera\Opera\sessions\autosave.win
C:\Documents and Settings\Андрей\Local Settings\Application Data\Opera\Opera\vps\0000\md.dat