This is my hijackthis.log
Logfile of HijackThis v1.97.7
Scan saved at 5:47:45 PM, on 8/21/2004
Platform: Windows XP (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 (6.00.2600.0000)

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:\WINDOWS\system32\spoolsv.exe
C:\Program Files\Common Files\Symantec Shared\ccEvtMgr.exe
C:\WINDOWS\System32\S3tray2.exe
C:\Program Files\Hewlett-Packard\HP Display Settings\hpdisply.exe
C:\windows\system\hpsysdrv.exe
C:\PROGRA~1\HPONE-~1\OneTouch.EXE
C:\WINDOWS\system32\mfctn32.exe
C:\WINDOWS\System32\ctfmon.exe
C:\Program Files\MSN Messenger\MsnMsgr.Exe
C:\WINDOWS\System32\HPConfig.exe
C:\PROGRA~1\Iomega\System32\AppServices.exe
C:\Program Files\Norton AntiVirus\navapsvc.exe
C:\Program Files\Norton AntiVirus\AdvTools\NPROTECT.EXE
C:\WINDOWS\system32\msku.exe
C:\WINDOWS\system32\scagent.exe
C:\WINDOWS\System32\svchost.exe
C:\Hijackthis\HijackThis.exe

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Bar = res://C:\WINDOWS\system32\lawok.dll/sp.html#29126
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Page = res://C:\WINDOWS\system32\lawok.dll/sp.html#29126
R1 - HKCU\Software\Microsoft\Internet Explorer\Search,SearchAssistant = res://C:\WINDOWS\system32\lawok.dll/sp.html#29126
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Bar = res://C:\WINDOWS\system32\lawok.dll/sp.html#29126
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Page = res://C:\WINDOWS\system32\lawok.dll/sp.html#29126
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = about :blank
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Search_URL = res://C:\WINDOWS\system32\lawok.dll/sp.html#29126
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,SearchAssistant = res://C:\WINDOWS\system32\lawok.dll/sp.html#29126
O2 - BHO: (no name) - {5AB9366F-C6A7-C20A-7DD8-57E2B35C0934} - C:\WINDOWS\msvi.dll
O2 - BHO: (no name) - {AA58ED58-01DD-4d91-8333-CF10577473F7} - c:\program files\google\googletoolbar2.dll
O3 - Toolbar: &Google - {2318C2B1-4965-11d4-9B18-009027A5CD4F} - c:\program files\google\googletoolbar2.dll
O4 - HKLM\..\Run: [S3TRAY2] S3tray2.exe
O4 - HKLM\..\Run: [HP Display Settings] C:\Program Files\Hewlett-Packard\HP Display Settings\hpdisply.exe /s
O4 - HKLM\..\Run: [hpsysdrv] c:\windows\system\hpsysdrv.exe
O4 - HKLM\..\Run: [QT4HPOT] C:\PROGRA~1\HPONE-~1\OneTouch.EXE
O4 - HKLM\..\Run: [mfctn32.exe] C:\WINDOWS\system32\mfctn32.exe
O4 - HKCU\..\Run: [ctfmon.exe] C:\WINDOWS\System32\ctfmon.exe
O4 - HKCU\..\Run: [MsnMsgr] "C:\Program Files\MSN Messenger\MsnMsgr.Exe" /background
O4 - Global Startup: Microsoft Office.lnk = C:\Program Files\Microsoft Office\Office10\OSA.EXE
O8 - Extra context menu item: &Google Search - res://c:\program files\google\GoogleToolbar2.dll/cmsearch.html
O8 - Extra context menu item: Backward Links - res://c:\program files\google\GoogleToolbar2.dll/cmbacklinks.html
O8 - Extra context menu item: Cached Snapshot of Page - res://c:\program files\google\GoogleToolbar2.dll/cmcache.html
O8 - Extra context menu item: E&xport to Microsoft Excel - res://C:\PROGRA~1\MICROS~2\Office10\EXCEL.EXE/3000
O8 - Extra context menu item: Similar Pages - res://c:\program files\google\GoogleToolbar2.dll/cmsimilar.html
O8 - Extra context menu item: Translate into English - res://c:\program files\google\GoogleToolbar2.dll/cmtrans.html
O9 - Extra button: Messenger (HKLM)
O9 - Extra 'Tools' menuitem: Windows Messenger (HKLM)
O12 - Plugin for .cdx: C:\Program Files\Internet Explorer\PLUGINS\NPCDP32.DLL
O12 - Plugin for .pdb: C:\Program Files\Internet Explorer\PLUGINS\NPC3DS.dll
O12 - Plugin for .spop: C:\Program Files\Internet Explorer\Plugins\NPDocBox.dll
O14 - IERESET.INF: START_PAGE_URL=http://www.hp.com/notebooks/pavilion/e-center
O16 - DPF: {00B71CFB-6864-4346-A978-C0A14556272C} (Checkers Class) - http://messenger.zone.msn.com/binary/msgrchkr.cab
O16 - DPF: {11311111-1111-1111-1111-111111111157} - file://C:\Recycled\Q330995.exe
O16 - DPF: {1D0D9077-3798-49BB-9058-393499174D5D} - file://c:\counter.cab
O16 - DPF: {665585FD-2068-4C5E-A6D3-53AC3270ECD4} (FileSharingCtrl Class) - http://appdirectory.messenger.msn.com/AppDirectory/P4Apps/FileSharing/en/filesharingctrl.cab
O16 - DPF: {74D05D43-3236-11D4-BDCD-00C04F9A3B61} (HouseCall Control) - http://a840.g.akamai.net/7/840/537/2004033001/housecall.antivirus.com/housecall/xscan53.cab
O16 - DPF: {8E0D4DE5-3180-4024-A327-4DFAD1796A8D} (MessengerStatsClient Class) - http://messenger.zone.msn.com/binary/MessengerStatsClient.cab
O16 - DPF: {9E1089BC-1AE8-4685-8D77-6721E5C318A8} - http://dload.ipbill.com/del/loader.cab
O16 - DPF: {D27CDB6E-AE6D-11CF-96B8-444553540000} (Shockwave Flash Object) - http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab

Could anyone help me out please?

If your browser home page url becomes about :blank and you always see some unwanted page, you have a spyware infection called CoolWWWSearch. The unwanted home page depends on which variant of the CoolWWWSearch spyware you have....there's about 30 variants that do pretty much the same thing.

I had the same as yours, about :blank and Home Search. The variant name is CoolWWWSearch.HomeSearch. I think I've gotten rid of it, now.

You will need Adaware, Spybot, and a free tool called CWShredder.exe from www.majorgeeks.com. Adaware and Spybot can only remove the infected files. CWShredder does the real work.

Here's what to do :
1) run CWShredder. First off, Scan Only and you will see a list of the CoolWWWSearch variants on your PC. Then select Fix and CWShredder will drop a train on anything running. CWShredder should automatically reboot your system.
2) run CWShredder again after rebooting. Things should look clean when you Scan Only.
3) Check for Problems with Spybot Search and Destroy. Have it remove everything it comes up with.
4) Do a Full System Scan with Adaware. Again, quarantine anything it comes up with.
Things should be fine at this point, but run #5 for good measure
5) Reboot and rescan with all 3 tools. If all is good, they will come up with nothing.

At no time during this process should you start your web Browser. If the spyware is not totally removed, it will completely reinstall itself when the browser is launched.

When this thing is gone, I strongly suggest turning up the security with Spybot and using its "Immunize" feature to block all known rogue sites, tracking cookies, etc.