Can somebody help?

I am pretty sure I have some viruses and other stuff. I thought I had downloaded McAfee but it doesn't seem to work. I hope someone can walk me through what I need to do. Here is my log:

Logfile of HijackThis v1.99.1
Scan saved at 07:55, on 07-11-07
Platform: Windows XP SP2 (WinNT 5.01.2600)
MSIE: Internet Explorer v7.00 (7.00.6000.16544)

Running processes:
C:\WINDOWS\System32\smss.exe
C:\WINDOWS\system32\csrss.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\System32\svchost.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\system32\spoolsv.exe
C:\WINDOWS\Explorer.EXE
C:\WINDOWS\Nhksrv.exe
C:\WINDOWS\System32\drivers\CDAC11BA.EXE
C:\Program Files\Common Files\EPSON\EBAPI\SAgent2.exe
C:\Program Files\Common Files\McAfee\HackerWatch\HWAPI.exe
C:\PROGRA~1\McAfee\MSC\mcmscsvc.exe
c:\PROGRA~1\COMMON~1\mcafee\mna\mcnasvc.exe
C:\PROGRA~1\McAfee\MSC\mcpromgr.exe
C:\Program Files\McAfee\MPF\MPFSrv.exe
C:\Program Files\Spyware Doctor\sdhelp.exe
C:\WINDOWS\MMKeybd.exe
C:\Program Files\Common Files\Microsoft Shared\Works Shared\WkUFind.exe
C:\WINDOWS\system32\wdfmgr.exe
C:\Program Files\BillP Studios\WinPatrol\winpatrol.exe
C:\Program Files\Adobe\Photoshop Album Starter Edition\3.0\Apps\apdproxy.exe
C:\Program Files\Philips\Philips Device Manager\Bin\DeviceManager.exe
C:\Program Files\Java\jre1.5.0_06\bin\jusched.exe
C:\Program Files\Messenger\msmsgs.exe
C:\Program Files\Spyware Doctor\swdoctor.exe
C:\WINDOWS\system32\ctfmon.exe
C:\WINDOWS\System32\spool\DRIVERS\W32X86\3\E_S10IC2.EXE
C:\WINDOWS\system32\wuauclt.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\System32\alg.exe
C:\WINDOWS\System32\wbem\wmiprvse.exe
C:\WINDOWS\SYSTEM32\spider.exe
c:\PROGRA~1\mcafee.com\agent\mcagent.exe
C:\WINDOWS\system32\wuauclt.exe
C:\Documents and Settings\Sharon.WATERSTOY\Desktop\HijackThis.exe
c:\PROGRA~1\mcafee\msc\mcuimgr.exe

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://home.bellsouth.net
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://go.microsoft.com/fwlink/?LinkId=69157
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Search_URL = http://go.microsoft.com/fwlink/?LinkId=54896
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Page = http://go.microsoft.com/fwlink/?LinkId=54896
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Start Page = http://go.microsoft.com/fwlink/?LinkId=69157
O2 - BHO: Yahoo! Companion BHO - {02478D38-C3F9-4efb-9B51-7695ECA05670} - C:\Program Files\Yahoo!\Companion\Installs\cpn\ycomp5_5_7_0.dll
O2 - BHO: Adobe PDF Reader Link Helper - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Adobe\Acrobat 7.0\ActiveX\AcroIEHelper.dll
O2 - BHO: BlspcHlpr Class - {15C9938F-CB96-496D-800A-B827F2E34EA1} - C:\Program Files\BellSouth Internet Tools\blspc.dll
O2 - BHO: PCTools Site Guard - {5C8B2A36-3DB1-42A4-A3CB-D426709BBFEB} - C:\PROGRA~1\SPYWAR~2\tools\iesdsg.dll
O2 - BHO: SSVHelper Class - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - C:\Program Files\Java\jre1.5.0_06\bin\ssv.dll
O2 - BHO: PCTools Browser Monitor - {B56A7D7D-6927-48C8-A975-17DF180C71AC} - C:\PROGRA~1\SPYWAR~2\tools\iesdpb.dll
O3 - Toolbar: Yahoo! Companion - {EF99BD32-C1FB-11D2-892F-0090271D4F88} - C:\Program Files\Yahoo!\Companion\Installs\cpn\ycomp5_5_7_0.dll
O3 - Toolbar: (no name) - {0BF43445-2F28-4351-9252-17FE6E806AA0} - (no file)
O4 - HKLM\..\Run: [DellTouch] C:\WINDOWS\MMKeybd.exe
O4 - HKLM\..\Run: [Microsoft Works Update Detection] C:\Program Files\Common Files\Microsoft Shared\Works Shared\WkUFind.exe
O4 - HKLM\..\Run: [WinPatrol] C:\Program Files\BillP Studios\WinPatrol\winpatrol.exe
O4 - HKLM\..\Run: [Adobe Photo Downloader] "C:\Program Files\Adobe\Photoshop Album Starter Edition\3.0\Apps\apdproxy.exe"
O4 - HKLM\..\Run: [PhilipsDM] "C:\Program Files\Philips\Philips Device Manager\Bin\DeviceManager.exe"
O4 - HKLM\..\Run: [SunJavaUpdateSched] C:\Program Files\Java\jre1.5.0_06\bin\jusched.exe
O4 - HKCU\..\Run: [MSMSGS] "C:\Program Files\Messenger\msmsgs.exe" /background
O4 - HKCU\..\Run: [Spyware Doctor] "C:\Program Files\Spyware Doctor\swdoctor.exe" /Q
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
O4 - Global Startup: EPSON Status Monitor 3 Environment Check 2.lnk = C:\WINDOWS\SYSTEM32\SPOOL\DRIVERS\W32X86\3\E_SRCV02.EXE
O8 - Extra context menu item: &AOL Toolbar search - res://C:\Program Files\AOL Toolbar\toolbar.dll/SEARCH.HTML
O8 - Extra context menu item: E&xport to Microsoft Excel - res://C:\PROGRA~1\MICROS~4\Office12\EXCEL.EXE/3000
O9 - Extra button: (no name) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\jre1.5.0_06\bin\ssv.dll
O9 - Extra 'Tools' menuitem: Sun Java Console - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\jre1.5.0_06\bin\ssv.dll
O9 - Extra button: Spyware Doctor - {2D663D1A-8670-49D9-A1A5-4C56B4E14E84} - C:\PROGRA~1\SPYWAR~2\tools\iesdpb.dll
O9 - Extra button: Research - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - C:\PROGRA~1\MICROS~4\Office12\REFIEBAR.DLL
O9 - Extra button: Real.com - {CD67F990-D8E9-11d2-98FE-00C0F0318AFE} - C:\WINDOWS\System32\Shdocvw.dll
O9 - Extra button: (no name) - {e2e2dd38-d088-4134-82b7-f2ba38496583} - %windir%\Network Diagnostic\xpnetdiag.exe (file missing)
O9 - Extra 'Tools' menuitem: @xpsp3res.dll,-20001 - {e2e2dd38-d088-4134-82b7-f2ba38496583} - %windir%\Network Diagnostic\xpnetdiag.exe (file missing)
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
O11 - Options group: [INTERNATIONAL] International*
O16 - DPF: {9A9307A0-7DA4-4DAF-B042-5009F29E09E1} (ActiveScan Installer Class) - http://acs.pandasoftware.com/activescan/as5free/asinst.cab
O18 - Protocol: ms-help - {314111C7-A502-11D2-BBCA-00C04F8EC294} - C:\Program Files\Common Files\Microsoft Shared\Help\hxds.dll
O18 - Filter hijack: text/xml - {807563E5-5146-11D5-A672-00B0D022E945} - C:\PROGRA~1\COMMON~1\MICROS~1\OFFICE12\MSOXMLMF.DLL
O20 - Winlogon Notify: klogon - C:\WINDOWS\system32\klogon.dll
O20 - Winlogon Notify: WgaLogon - C:\WINDOWS\SYSTEM32\WgaLogon.dll
O23 - Service: Active Virus Shield (AVP) - Unknown owner - C:\Program Files\AOL\Active Virus Shield\avp.exe" -r (file missing)
O23 - Service: C-DillaCdaC11BA - Macrovision - C:\WINDOWS\System32\drivers\CDAC11BA.EXE
O23 - Service: EPSON Printer Status Agent2 (EPSONStatusAgent2) - SEIKO EPSON CORPORATION - C:\Program Files\Common Files\EPSON\EBAPI\SAgent2.exe
O23 - Service: McAfee HackerWatch Service - McAfee, Inc. - C:\Program Files\Common Files\McAfee\HackerWatch\HWAPI.exe
O23 - Service: McAfee Update Manager (mcmispupdmgr) - McAfee, Inc. - C:\PROGRA~1\McAfee\MSC\mcupdmgr.exe
O23 - Service: McAfee Services (mcmscsvc) - McAfee, Inc. - C:\PROGRA~1\McAfee\MSC\mcmscsvc.exe
O23 - Service: McAfee Network Agent (McNASvc) - McAfee, Inc. - c:\PROGRA~1\COMMON~1\mcafee\mna\mcnasvc.exe
O23 - Service: McAfee Protection Manager (mcpromgr) - McAfee, Inc. - C:\PROGRA~1\McAfee\MSC\mcpromgr.exe
O23 - Service: McAfee Personal Firewall Service (MpfService) - McAfee, Inc. - C:\Program Files\McAfee\MPF\MPFSrv.exe
O23 - Service: Netropa NHK Server (Nhksrv) - Unknown owner - C:\WINDOWS\Nhksrv.exe
O23 - Service: ScriptBlocking Service (SBService) - Unknown owner - C:\PROGRA~1\COMMON~1\SYMANT~1\SCRIPT~1\SBServ.exe (file missing)
O23 - Service: PC Tools Spyware Doctor (SDhelper) - PC Tools Research Pty Ltd - C:\Program Files\Spyware Doctor\sdhelp.exe

Thanks