Continuous Popups to protect my system and changed homepage

This just started happening yesterday but I get nonstop popups including
pcsecuresystem.com
ultimate defender
and many others - something else keeps saying I have some type of trojan horse and click here to remove it. My homepage has been changed and can't go back - and also my desktop has some image now saying your privacy is in danger. I did a hijack this log and below is what I got


Logfile of HijackThis v1.99.1
Scan saved at 2:43:40 PM, on 10/10/2007
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:\WINDOWS\Explorer.EXE
C:\WINDOWS\system32\LEXBCES.EXE
C:\WINDOWS\system32\spoolsv.exe
C:\WINDOWS\system32\LEXPPS.EXE
C:\Program Files\Synaptics\SynTP\SynTPEnh.exe
C:\WINDOWS\System32\WLTRAY.exe
C:\WINDOWS\System32\hkcmd.exe
C:\WINDOWS\System32\igfxpers.exe
C:\WINDOWS\System32\igfxsrvc.exe
C:\Program Files\Staples\easyprint\dsfhost.exe
C:\Program Files\Lexmark 7300 Series\lxcimon.exe
C:\Program Files\Lexmark 7300 Series\ezprint.exe
C:\PROGRA~1\Grisoft\AVG7\avgcc.exe
C:\Program Files\Java\jre1.5.0_03\bin\jusched.exe
C:\Program Files\Java\jre1.5.0_03\bin\jucheck.exe
C:\WINDOWS\system32\ctfmon.exe
C:\PROGRA~1\Grisoft\AVG7\avgamsvr.exe
C:\PROGRA~1\Grisoft\AVG7\avgupsvc.exe
C:\PROGRA~1\Grisoft\AVG7\avgemc.exe
C:\Program Files\Common Files\Microsoft Shared\VS7DEBUG\MDM.EXE
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\System32\wltrysvc.exe
C:\WINDOWS\System32\bcmwltry.exe
C:\WINDOWS\system32\lxcicoms.exe
C:\PROGRA~1\Grisoft\AVG7\avgw.exe
C:\Program Files\Internet Explorer\iexplore.exe
C:\Documents and Settings\Erin\Local Settings\Temporary Internet Files\Content.IE5\ISKCMWXP\HijackThis[1].exe
C:\Program Files\Internet Explorer\iexplore.exe

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://softwarereferral.com/jump.php?wmid=…6Ojg5&lid=2
O2 - BHO: AcroIEHlprObj Class - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Adobe\Acrobat 7.0\ActiveX\AcroIEHelper.dll
O2 - BHO: MSVPS System - {3ADCBC16-19FA-4C59-9C22-E17C71B5FD7A} - C:\WINDOWS\bndsrvqt.dll
O2 - BHO: My Web Search Bar BHO - {8EAB99C1-F9EC-4b64-A4BA-D9BCAE8779C2} - C:\Program Files\MyWebSearchWB\bar\1.bin\W6BAR.DLL
O3 - Toolbar: WeatherBug Browser Bar - powered by MyWebSearch - {8EAB99C9-F9EC-4b64-A4BA-D9BCAE8779C2} - C:\Program Files\MyWebSearchWB\bar\1.bin\W6BAR.DLL
O3 - Toolbar: The netadv - {ABF529BE-6245-465A-BBD4-238C4EAB0F0A} - C:\WINDOWS\netadv.dll
O4 - HKLM\..\Run: [SynTPEnh] C:\Program Files\Synaptics\SynTP\SynTPEnh.exe
O4 - HKLM\..\Run: [Dell Wireless Manager UI] C:\WINDOWS\System32\WLTRAY
O4 - HKLM\..\Run: [igfxtray] C:\WINDOWS\System32\igfxtray.exe
O4 - HKLM\..\Run: [igfxhkcmd] C:\WINDOWS\System32\hkcmd.exe
O4 - HKLM\..\Run: [igfxpers] C:\WINDOWS\System32\igfxpers.exe
O4 - HKLM\..\Run: [Windows Defender] "C:\Program Files\Windows Defender\MSASCui.exe" -hide
O4 - HKLM\..\Run: [DSFHost] C:\Program Files\Staples\easyprint\dsfhost.exe
O4 - HKLM\..\Run: [KernelFaultCheck] %systemroot%\system32\dumprep 0 -k
O4 - HKLM\..\Run: [lxcimon.exe] "C:\Program Files\Lexmark 7300 Series\lxcimon.exe"
O4 - HKLM\..\Run: [EzPrint] "C:\Program Files\Lexmark 7300 Series\ezprint.exe"
O4 - HKLM\..\Run: [QuickTime Task] "C:\Program Files\QuickTime\qttask.exe" -atboottime
O4 - HKLM\..\Run: [AVG7_CC] C:\PROGRA~1\Grisoft\AVG7\avgcc.exe /STARTUP
O4 - HKLM\..\Run: [SunJavaUpdateSched] C:\Program Files\Java\jre1.5.0_03\bin\jusched.exe
O4 - HKCU\..\Run: [ctfmon.exe] C:\WINDOWS\system32\ctfmon.exe
O4 - Global Startup: Adobe Reader Speed Launch.lnk = C:\Program Files\Adobe\Acrobat 7.0\Reader\reader_sl.exe
O8 - Extra context menu item: E&xport to Microsoft Excel - res://C:\PROGRA~1\MICROS~2\OFFICE11\EXCEL.EXE/3000
O9 - Extra button: (no name) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\jre1.5.0_03\bin\npjpi150_03.dll
O9 - Extra 'Tools' menuitem: Sun Java Console - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\jre1.5.0_03\bin\npjpi150_03.dll
O9 - Extra button: Research - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - C:\PROGRA~1\MICROS~2\OFFICE11\REFIEBAR.DLL
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
O16 - DPF: {01010E00-5E80-11D8-9E86-0007E96C65AE} (SupportSoft SmartIssue) - http://www.symantec.com/techsupp/asa/ctrl/tgctlsi.cab
O16 - DPF: {01012101-5E80-11D8-9E86-0007E96C65AE} (SupportSoft Script Runner Class) - http://www.symantec.com/techsupp/asa/ctrl/tgctlsr.cab
O16 - DPF: {0EB0E74A-2A76-4AB3-A7FB-9BD8C29F7F75} (CKAVWebScan Object) - http://www.kaspersky.com/kos/english/kavwebscan_unicode.cab
O16 - DPF: {17492023-C23A-453E-A040-C7C580BBF700} (Windows Genuine Advantage Validation Tool) - http://go.microsoft.com/fwlink/?linkid=48835
O16 - DPF: {1F2F4C9E-6F09-47BC-970D-3C54734667FE} (LSSupCtl Class) - http://www.symantec.com/techsupp/asa/ctrl/LSSupCtl.cab
O16 - DPF: {6414512B-B978-451D-A0D8-FCFDF33E833C} (WUWebControl Class) - http://update.microsoft.com/windowsupdate/…b?1140896154748
O16 - DPF: {CE28D5D2-60CF-4C7D-9FE8-0F47A3308078} (ActiveDataInfo Class) - http://www.symantec.com/techsupp/asa/ctrl/SymAData.cab
O16 - DPF: {E06E2E99-0AA1-11D4-ABA6-0060082AA75C} (GpcContainer Class) - https://stryker.webex.com/client/v_mywebex-…ort/ieatgpc.cab
O16 - DPF: {F127B9BA-89EA-4B04-9C67-2074A9DF61FD} (Photo Upload Plugin Class) - http://cvs.pnimedia.com/upload/activex/v2_…tupv2.0.0.9.cab?
O20 - Winlogon Notify: igfxcui - C:\WINDOWS\SYSTEM32\igfxdev.dll
O20 - Winlogon Notify: WgaLogon - C:\WINDOWS\SYSTEM32\WgaLogon.dll
O21 - SSODL: msvb - {D0E5C3A7-D047-49A0-B2DA-EEE127C3660E} - C:\WINDOWS\msvb.dll
O21 - SSODL: sysdx - {CCB7B057-DEFF-4C05-9122-4B846DBDFA87} - C:\WINDOWS\sysdx.dll
O23 - Service: AVG7 Alert Manager Server (Avg7Alrt) - GRISOFT, s.r.o. - C:\PROGRA~1\Grisoft\AVG7\avgamsvr.exe
O23 - Service: AVG7 Update Service (Avg7UpdSvc) - GRISOFT, s.r.o. - C:\PROGRA~1\Grisoft\AVG7\avgupsvc.exe
O23 - Service: AVG E-mail Scanner (AVGEMS) - GRISOFT, s.r.o. - C:\PROGRA~1\Grisoft\AVG7\avgemc.exe
O23 - Service: LexBce Server (LexBceS) - Lexmark International, Inc. - C:\WINDOWS\system32\LEXBCES.EXE
O23 - Service: lxci_device - - C:\WINDOWS\system32\lxcicoms.exe
O23 - Service: Dell Wireless WLAN Tray Service (wltrysvc) - Unknown owner - C:\WINDOWS\System32\wltrysvc.exe


Any help on what I can do to fix this would be greatly appreciated.

Thanks