hijacked home page

here is my log what do i need to get rid off, thanks

Logfile of HijackThis v1.97.7
Scan saved at 7:29:55 PM, on 4/9/2004
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\Ati2evxx.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\system32\spoolsv.exe
C:\WINDOWS\system32\Ati2evxx.exe
C:\WINDOWS\Explorer.EXE
C:\Program Files\Common Files\Symantec Shared\ccApp.exe
C:\Program Files\Creative\ShareDLL\CtNotify.exe
C:\WINDOWS\System32\CTHELPER.EXE
C:\Program Files\ATI Technologies\ATI Control Panel\atiptaxx.exe
C:\Program Files\Common Files\Logitech\QCDriver3\LVCOMS.EXE
C:\Program Files\Creative\ShareDLL\Mediadet.exe
C:\Program Files\Logitech\ImageStudio\LogiTray.exe
C:\Program Files\Logitech\iTouch\iTouch.exe
C:\Program Files\Common Files\Symantec Shared\ccEvtMgr.exe
C:\Program Files\Java\j2re1.4.2_04\bin\jusched.exe
C:\WINDOWS\System32\CTsvcCDA.exe
C:\Program Files\Common Files\Microsoft Shared\VS7Debug\mdm.exe
C:\Program Files\Creative\SBAudigy\RemoteCenter\Rc\Rcman.exe
C:\Program Files\ATI Multimedia\RemCtrl\ATIRW.exe
C:\Program Files\Norton SystemWorks\Norton AntiVirus\navapsvc.exe
C:\WINDOWS\System32\ctfmon.exe
C:\Program Files\Creative\TaskBar\CTLTray.exe
C:\Documents and Settings\PJ O'Laughlin\Application Data\wnos.exe
C:\WINDOWS\System32\wnstssu.exe
C:\Program Files\Logitech\iTouch\kbdtray.exe
C:\Program Files\Norton SystemWorks\Norton Utilities\NPROTECT.EXE
C:\WINDOWS\System32\rundll32.exe
C:\PROGRA~1\NORTON~1\SPEEDD~1\nopdb.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\System32\MsPMSPSv.exe
C:\Program Files\Creative\SBAudigy\RemoteCenter\Rc\EAX.exe
C:\Program Files\Creative\SBAudigy\RemoteCenter\Rc\VRC.exe
C:\Program Files\Creative\SBAudigy\RemoteCenter\Center\RCenter.exe
C:\Program Files\Creative\SBAudigy\RemoteCenter\Rc\OSDMenu.EXE
C:\Program Files\Yahoo!\Messenger\YPager.exe
C:\Program Files\Internet Explorer\iexplore.exe
C:\Documents and Settings\PJ O'Laughlin\Desktop\HijackThis.exe
C:\Program Files\Messenger\msmsgs.exe

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Page = http://riviera.cc (obfuscated)
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://msn.espn.go.com/
R1 - HKCU\Software\Microsoft\Internet Explorer\Search,SearchAssistant = http://riviera.cc (obfuscated)
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Start Page = http://riviera.cc (obfuscated)
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Page = http://riviera.cc (obfuscated)
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,SearchAssistant = http://riviera.cc (obfuscated)
R1 - HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings,ProxyOverride = localhost
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,HomeOldSP = http://riviera.cc (obfuscated)
O2 - BHO: (no name) - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Adobe\Acrobat 5.0\Reader\ActiveX\AcroIEHelper.ocx
O2 - BHO: NAV Helper - {BDF3E430-B101-42AD-A544-FADC6B084872} - C:\Program Files\Norton SystemWorks\Norton AntiVirus\NavShExt.dll
O3 - Toolbar: &Radio - {8E718888-423F-11D2-876E-00A0C9082467} - C:\WINDOWS\System32\msdxm.ocx
O3 - Toolbar: Norton AntiVirus - {42CDD1BF-3FFB-4238-8AD1-7859DF00B1D6} - C:\Program Files\Norton SystemWorks\Norton AntiVirus\NavShExt.dll
O4 - HKLM\..\Run: [ccApp] "C:\Program Files\Common Files\Symantec Shared\ccApp.exe"
O4 - HKLM\..\Run: [ccRegVfy] "C:\Program Files\Common Files\Symantec Shared\ccRegVfy.exe"
O4 - HKLM\..\Run: [Disc Detector] C:\Program Files\Creative\ShareDLL\CtNotify.exe
O4 - HKLM\..\Run: [WINDVDPatch] CTHELPER.EXE
O4 - HKLM\..\Run: [UpdReg] C:\WINDOWS\UpdReg.EXE
O4 - HKLM\..\Run: [CTStartup] C:\Program Files\Creative\Splash Screen\CTEaxSpl.EXE /run
O4 - HKLM\..\Run: [ATIPTA] C:\Program Files\ATI Technologies\ATI Control Panel\atiptaxx.exe
O4 - HKLM\..\Run: [LVCOMS] C:\Program Files\Common Files\Logitech\QCDriver3\LVCOMS.EXE
O4 - HKLM\..\Run: [LogitechGalleryRepair] C:\Program Files\Logitech\ImageStudio\ISStart.exe
O4 - HKLM\..\Run: [LogitechImageStudioTray] C:\Program Files\Logitech\ImageStudio\LogiTray.exe
O4 - HKLM\..\Run: [zBrowser Launcher] C:\Program Files\Logitech\iTouch\iTouch.exe
O4 - HKLM\..\Run: [EM_EXEC] C:\PROGRA~1\Logitech\MOUSEW~1\SYSTEM\EM_EXEC.EXE
O4 - HKLM\..\Run: [NeroCheck] C:\WINDOWS\System32\NeroCheck.exe
O4 - HKLM\..\Run: [CTHelper] CTHELPER.EXE
O4 - HKLM\..\Run: [SunJavaUpdateSched] C:\Program Files\Java\j2re1.4.2_04\bin\jusched.exe
O4 - HKLM\..\Run: [sys] regedit -s sysdllwm.reg
O4 - HKCU\..\Run: [RemoteCenter] C:\Program Files\Creative\SBAudigy\RemoteCenter\Rc\Rcman.exe
O4 - HKCU\..\Run: [ATI Launchpad] "C:\Program Files\ATI Multimedia\main\launchpd.exe"
O4 - HKCU\..\Run: [ATI Remote Control] C:\Program Files\ATI Multimedia\RemCtrl\ATIRW.exe
O4 - HKCU\..\Run: [ctfmon.exe] C:\WINDOWS\System32\ctfmon.exe
O4 - HKCU\..\Run: [TaskTray] "C:\Program Files\Creative\TaskBar\CTLTray.exe"
O4 - HKCU\..\Run: [TaskBar] "C:\Program Files\Creative\TaskBar\CTLTask.exe"
O4 - HKCU\..\Run: [LDM] \Program\BackWeb-8876480.exe
O4 - HKCU\..\Run: [Meor] C:\Documents and Settings\PJ O'Laughlin\Application Data\wnos.exe
O4 - HKCU\..\Run: [WNSA] C:\WINDOWS\System32\wnstssu.exe
O4 - HKCU\..\RunOnce: [CleanUp!] C:\Program Files\CleanUp!\Cleanup.exe /WindowsRestart
O4 - Global Startup: Logitech Desktop Messenger.lnk = C:\Program Files\Logitech\Desktop Messenger\8876480\Program\LDMConf.exe
O4 - Global Startup: Microsoft Office.lnk = C:\Program Files\Microsoft Office\Office10\OSA.EXE
O8 - Extra context menu item: E&xport to Microsoft Excel - res://C:\PROGRA~1\MICROS~2\Office10\EXCEL.EXE/3000
O9 - Extra 'Tools' menuitem: Sun Java Console (HKLM)
O9 - Extra button: ATI TV (HKLM)
O9 - Extra button: Messenger (HKLM)
O9 - Extra 'Tools' menuitem: Yahoo! Messenger (HKLM)
O9 - Extra button: AIM (HKLM)
O9 - Extra button: Related (HKLM)
O9 - Extra 'Tools' menuitem: Show &Related Links (HKLM)
O9 - Extra button: Messenger (HKLM)
O9 - Extra 'Tools' menuitem: Messenger (HKLM)
O12 - Plugin for .spop: C:\Program Files\Internet Explorer\Plugins\NPDocBox.dll
O16 - DPF: {02C20140-76F8-4763-83D5-B660107B7A90} (Moniker32 Class) - http://63.219.181.7/cax.cab
O16 - DPF: {0A5FD7C5-A45C-49FC-ADB5-9952547D5715} (Creative Software AutoUpdate) - http://www.creative.com/su/ocx/12119/CTSUEng.cab
O16 - DPF: {30528230-99F7-4BB4-88D8-FA1D4F56A2AB} (YInstStarter Class) - http://download.yahoo.com/dl/installs/yinst0401.cab
O16 - DPF: {33564D57-0000-0010-8000-00AA00389B71} - http://download.microsoft.com/download/F/6/E/F6E491A6-77E1-4E20-9F5F-94901338C922/wmv9VCM.CAB
O16 - DPF: {9EB320CE-BE1D-4304-A081-4B4665414BEF} (MediaTicketsInstaller Control) - http://www.mt-download.com/MediaTicketsInstaller.cab
O16 - DPF: {9F1C11AA-197B-4942-BA54-47A8489BB47F} (Update Class) - http://v4.windowsupdate.microsoft.com/CAB/x86/unicode/iuctl.CAB?38031.5774421296
O16 - DPF: {D27CDB6E-AE6D-11CF-96B8-444553540000} (Shockwave Flash Object) - http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab
O16 - DPF: {F6ACF75C-C32C-447B-9BEF-46B766368D29} (Creative Software AutoUpdate Support Package) - http://www.creative.com/su/ocx/12119/CTPID.cab