Here is the log after the cleaning process:

Logfile of HijackThis v1.97.7
Scan saved at 10:14:49 AM, on 8/07/2004
Platform: Windows XP SP1 (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 SP1 (6.00.2800.1106)

Running processes:
C:\WINDOWS\System32\smss.exe
C:\WINDOWS\system32\winlogon.exe
C:\WINDOWS\system32\services.exe
C:\WINDOWS\system32\lsass.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\Explorer.EXE
C:\Program Files\HiJackThis\HijackThis.exe

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Page = http:??www.microsoft.com/isapi/redir.dll?prd=ie&ar=iesearch
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http:??www.optima.com.au
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Start Page = http:??www.microsoft.com/isapi/redir.dll?prd={SUB_PRD}&clcid={SUB_CLSID}&pver={SUB_PVER}&ar=home
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Page = http:??www.microsoft.com/isapi/redir.dll?prd=ie&ar=iesearch
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http:??www.optima.com.au/
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Search_URL = http:??www.microsoft.com/isapi/redir.dll?prd=ie&ar=iesearch
O2 - BHO: (no name) - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Adobe\Acrobat 6.0\Reader\ActiveX\AcroIEHelper.dll
O2 - BHO: (no name) - {4E7BD74F-2B8D-469E-C0FF-FD60B590A87D} - C:\PROGRA~1\COMMON~1\Real\Toolbar\realbar.dll
O2 - BHO: (no name) - {53707962-6F74-2D53-2644-206D7942484F} - C:\PROGRA~1\SPYBOT~1\SDHelper.dll
O2 - BHO: (no name) - {562C1A20-72E7-4ED8-A26D-0DC57415FE92} - C:\Program Files\Popup Guard\PGI.dll
O3 - Toolbar: &Radio - {8E718888-423F-11D2-876E-00A0C9082467} - C:\WINDOWS\System32\msdxm.ocx
O3 - Toolbar: REALBAR - {4E7BD74F-2B8D-469E-C0FF-FD60B590A87D} - C:\PROGRA~1\COMMON~1\Real\Toolbar\realbar.dll
O4 - HKLM\..\Run: [NeroCheck] C:\WINDOWS\System32\\NeroCheck.exe
O4 - HKLM\..\Run: [WinampAgent] "C:\Program Files\Winamp3\winampa.exe"
O4 - HKLM\..\Run: [IgfxTray] C:\WINDOWS\System32\igfxtray.exe
O4 - HKLM\..\Run: [HotKeysCmds] C:\WINDOWS\System32\hkcmd.exe
O4 - HKLM\..\Run: [PRONoMgr.exe] C:\Program Files\Intel\NCS\PROSet\PRONoMgr.exe
O4 - HKLM\..\Run: [SoundMan] SOUNDMAN.EXE
O4 - HKLM\..\Run: [TkBellExe] "C:\Program Files\Common Files\Real\Update_OB\realsched.exe"  -osboot
O4 - HKLM\..\Run: [AVG_CC] C:\PROGRA~1\Grisoft\AVG6\avgcc32.exe /STARTUP
O4 - HKLM\..\Run: [SunJavaUpdateSched] C:\Program Files\Java\j2re1.4.2_04\bin\jusched.exe
O4 - HKCU\..\Run: [MSMSGS] "C:\Program Files\Messenger\msmsgs.exe" /background
O4 - Global Startup: Image Transfer.lnk = C:\Program Files\Sony Corporation\Image Transfer\SonyTray.exe
O4 - Global Startup: Microsoft Office.lnk = C:\Office\OSA9.EXE
O9 - Extra 'Tools' menuitem: Sun Java Console (HKLM)
O14 - IERESET.INF: START_PAGE_URL=http:??www.optima.com.au/
O16 - DPF: {D27CDB6E-AE6D-11CF-96B8-444553540000} (Shockwave Flash Object) - http:??active.macromedia.com/flash2/cabs/swflash.cab
O17 - HKLM\System\CS1\Services\Tcpip\Parameters: SearchList = vic.bigpond.net.au
O17 - HKLM\System\CS1\Services\VxD\MSTCP: SearchList = vic.bigpond.net.au
O17 - HKLM\System\CCS\Services\VxD\MSTCP: SearchList = vic.bigpond.net.au
O17 - HKLM\System\CCS\Services\Tcpip\Parameters: SearchList = vic.bigpond.net.au