Please help in removing Offeroptimizer!!!

I cant seem to get rid of these Offeroptimizer popups; I have tried all I can think of. So here is my HijackThis Log, hopefully someone can make sense of it and provide for me a solution. Thanks.

Logfile of HijackThis v1.99.0
Scan saved at 10:26:31 PM, on 1/3/2005
Platform: Windows XP SP2 (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 SP2 (6.00.2900.2180)

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:\Program Files\Common Files\Symantec Shared\ccSetMgr.exe
C:\Program Files\Common Files\Symantec Shared\SNDSrvc.exe
C:\Program Files\Common Files\Symantec Shared\SPBBC\SPBBCSvc.exe
C:\Program Files\Common Files\Symantec Shared\ccEvtMgr.exe
C:\WINDOWS\Explorer.EXE
C:\WINDOWS\system32\LEXBCES.EXE
C:\WINDOWS\system32\spoolsv.exe
C:\WINDOWS\system32\LEXPPS.EXE
C:\Program Files\Common Files\Microsoft Shared\VS7DEBUG\MDM.EXE
C:\Program Files\Norton AntiVirus\navapsvc.exe
C:\Program Files\Norton AntiVirus\IWP\NPFMntor.exe
C:\WINDOWS\System32\nvsvc32.exe
C:\WINDOWS\System32\svchost.exe
C:\Program Files\Common Files\Symantec Shared\CCPD-LC\symlcsvc.exe
C:\Program Files\Common Files\Real\Update_OB\realsched.exe
C:\WINDOWS\system32\dla\tfswctrl.exe
C:\Program Files\Common Files\Symantec Shared\ccApp.exe
C:\Program Files\MUSICMATCH\MUSICMATCH Jukebox\mmtask.exe
C:\Program Files\Messenger\msmsgs.exe
C:\WINDOWS\system32\ctfmon.exe
C:\WINDOWS\system32\mhtadilp.exe
C:\Program Files\AIM\aim.exe
C:\Program Files\Internet Explorer\iexplore.exe
C:\Documents and Settings\DGiammichele\Local Settings\Temporary Internet Files\Content.IE5\3VNY86OC\hijackthis[1]\HijackThis.exe
C:\Program Files\Outlook Express\msimn.exe
C:\WINDOWS\explorer.exe
C:\Program Files\Real\RealOne Player\RealPlay.exe
C:\Program Files\Symantec\LiveUpdate\NDETECT.EXE

R1 - HKCU\Software\Microsoft\Internet Explorer,SearchURL = http://www.popupsearches.com/sidesearch.html
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Bar = http://websearch.drsnsrch.com/sidesearch.cgi?id=
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Page = http://websearch.drsnsrch.com/sidesearch.cgi?id=
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.yahoo.com/
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Bar = http://websearch.drsnsrch.com/sidesearch.cgi?id=
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Page = http://websearch.drsnsrch.com/sidesearch.cgi?id=
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,SearchAssistant = http://websearch.drsnsrch.com/sidesearch.cgi?id=
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,CustomizeSearch = http://websearch.drsnsrch.com/sidesearch.cgi?id=
R1 - HKCU\Software\Microsoft\Internet Explorer\SearchURL,(Default) = websearch.drsnsrch.com/q.cgi?q=
R3 - URLSearchHook: (no name) - {1C78AB3F-A857-482e-80C0-3A1E5238A565} - (no file)
O2 - BHO: ZServObj Class - {00000000-C1EC-0345-6EC2-4D0300000000} - C:\WINDOWS\ZServ.dll
O2 - BHO: Band Class - {01F44A8A-8C97-4325-A378-76E68DC4AB2E} - C:\WINDOWS\systb.dll
O3 - Toolbar: (no name) - {2CDE1A7D-A478-4291-BF31-E1B4C16F92EB} - (no file)
O4 - HKLM\..\Run: [TkBellExe] "C:\Program Files\Common Files\Real\Update_OB\realsched.exe" -osboot
O4 - HKLM\..\Run: [Symantec NetDriver Monitor] C:\PROGRA~1\SYMNET~1\SNDMon.exe
O4 - HKLM\..\Run: [StorageGuard] "C:\Program Files\Common Files\Sonic\Update Manager\sgtray.exe" /r
O4 - HKLM\..\Run: [QuickTime Task] "C:\Program Files\QuickTime\qttask.exe" -atboottime
O4 - HKLM\..\Run: [nwiz] nwiz.exe /install
O4 - HKLM\..\Run: [NvCplDaemon] RUNDLL32.EXE C:\WINDOWS\System32\NvCpl.dll,NvStartup
O4 - HKLM\..\Run: [Lexmark X5100 Series] "C:\Program Files\Lexmark X5100 Series\lxbabmgr.exe"
O4 - HKLM\..\Run: [dla] C:\WINDOWS\system32\dla\tfswctrl.exe
O4 - HKLM\..\Run: [ccApp] "C:\Program Files\Common Files\Symantec Shared\ccApp.exe"
O4 - HKLM\..\Run: [mmtask] C:\Program Files\MUSICMATCH\MUSICMATCH Jukebox\mmtask.exe
O4 - HKLM\..\Run: [Win Server Updt] C:\WINDOWS\wupdt.exe
O4 - HKLM\..\Run: [whhdtvspicrmu] C:\WINDOWS\system32\mhtadilp.exe
O4 - HKLM\..\RunOnce: [SpybotSnD] "C:\Program Files\Spybot - Search & Destroy\SpybotSD.exe" /autocheck
O4 - HKCU\..\Run: [Systweak Ad and Popup Blocker] "C:\Program Files\Advanced System Optimizer\adblock.exe"
O4 - HKCU\..\Run: [seticlient] C:\Program Files\SETI@home\[email protected] -min
O4 - HKCU\..\Run: [MSMSGS] "C:\Program Files\Messenger\msmsgs.exe" /background
O4 - HKCU\..\Run: [ctfmon.exe] C:\WINDOWS\system32\ctfmon.exe
O8 - Extra context menu item: E&xport to Microsoft Excel - res://C:\PROGRA~1\MICROS~2\OFFICE11\EXCEL.EXE/3000
O9 - Extra button: Research - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - C:\PROGRA~1\MICROS~2\OFFICE11\REFIEBAR.DLL
O9 - Extra button: AIM - {AC9E2541-2814-11d5-BC6D-00B0D0A1DE45} - C:\Program Files\AIM\aim.exe
O9 - Extra button: Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Program Files\Messenger\msmsgs.exe
O9 - Extra 'Tools' menuitem: Windows Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Program Files\Messenger\msmsgs.exe
O12 - Plugin for .pdf: C:\Program Files\Internet Explorer\PLUGINS\nppdf32.dll
O15 - Trusted Zone: *.musicmatch.com
O15 - Trusted Zone: *.musicmatch.com (HKLM)
O16 - DPF: {01A88BB1-1174-41EC-ACCB-963509EAE56B} (SysProWmi Class) - http://support.dell.com/systemprofiler/SysPro.CAB
O16 - DPF: {0E5F0222-96B9-11D3-8997-00104BD12D94} (PCPitstop Utility) - http://www.pcpitstop.com/pcpitstop/PCPitStop.CAB
O16 - DPF: {1C78AB3F-A857-482E-80C0-3A1E5238A565} - file://C:\install.cab
O16 - DPF: {30528230-99F7-4BB4-88D8-FA1D4F56A2AB} (YInstStarter Class) - http://us.dl1.yimg.com/download.yahoo.com/dl/installs/yinst20040510.cab
O16 - DPF: {4E888414-DB8F-11D1-9CD9-00C04F98436A} (Microsoft.WinRep) - https://webresponse.one.microsoft.com/oas/ActiveX/winrep.cab
O16 - DPF: {A7E092C3-692A-11D0-A7E5-08002B322F3B} (WebResponseAttachments Control) - https://webresponse.one.microsoft.com/oas/ActiveX/FileXfer.cab
O23 - Service: Symantec Event Manager - Symantec Corporation - C:\Program Files\Common Files\Symantec Shared\ccEvtMgr.exe
O23 - Service: Symantec Password Validation - Symantec Corporation - C:\Program Files\Common Files\Symantec Shared\ccPwdSvc.exe
O23 - Service: Symantec Settings Manager - Symantec Corporation - C:\Program Files\Common Files\Symantec Shared\ccSetMgr.exe
O23 - Service: LexBce Server - Lexmark International, Inc. - C:\WINDOWS\system32\LEXBCES.EXE
O23 - Service: Norton AntiVirus Auto-Protect Service - Symantec Corporation - C:\Program Files\Norton AntiVirus\navapsvc.exe
O23 - Service: Norton AntiVirus Firewall Monitor Service - Symantec Corporation - C:\Program Files\Norton AntiVirus\IWP\NPFMntor.exe
O23 - Service: NVIDIA Display Driver Service - NVIDIA Corporation - C:\WINDOWS\System32\nvsvc32.exe
O23 - Service: SAVScan - Symantec Corporation - C:\Program Files\Norton AntiVirus\SAVScan.exe
O23 - Service: ScriptBlocking Service - Symantec Corporation - C:\PROGRA~1\COMMON~1\SYMANT~1\SCRIPT~1\SBServ.exe
O23 - Service: Symantec Network Drivers Service - Symantec Corporation - C:\Program Files\Common Files\Symantec Shared\SNDSrvc.exe
O23 - Service: Symantec SPBBCSvc - Symantec Corporation - C:\Program Files\Common Files\Symantec Shared\SPBBC\SPBBCSvc.exe
O23 - Service: Symantec Core LC - Symantec Corporation - C:\Program Files\Common Files\Symantec Shared\CCPD-LC\symlcsvc.exe