Spybot reveals Click.Giftload on my computer. I have read "what to do before posting" and have followed the suggestions. I have Spybot, Malwarebytes, Sophos, and Combofix loaded and have used them all in an effort to clean up my computer previously. Nothing works.
I have Windows Vista Home, Service Pack 2. I have tried to update Windows, but it will won't let me.

I used ERUNT to back up my computer.
Here is my DDS log from 4-2-11:

Click.GiftLoad: [SBI $89783858] User settings (Registry value, nothing done)
HKEY_USERS\.DEFAULT\Software\Microsoft\Internet Explorer\Main\featurecontrol\FEATURE_BROWSER_EMULATION\svchost.exe


--- Spybot - Search & Destroy version: 1.6.2 (build: 20090126) ---

2009-01-26 blindman.exe (1.0.0.8)
2009-01-26 SDFiles.exe (1.6.1.7)
2009-01-26 SDMain.exe (1.0.0.6)
2009-01-26 SDUpdate.exe (1.6.0.12)
2009-01-26 SpybotSD.exe (1.6.2.46)
2009-03-05 TeaTimer.exe (1.6.6.32)
2010-08-24 unins000.exe (51.49.0.0)
2009-01-26 Update.exe (1.6.0.7)
2009-11-04 advcheck.dll (1.6.5.20)
2007-04-02 aports.dll (2.1.0.0)
2008-06-14 DelZip179.dll (1.79.11.1)
2009-01-26 SDHelper.dll (1.6.2.14)
2008-06-19 sqlite3.dll
2009-01-26 Tools.dll (2.1.6.10)
2009-01-16 UninsSrv.dll (1.0.0.0)
2011-02-24 Includes\Adware.sbi (*)
2011-03-15 Includes\AdwareC.sbi (*)
2010-08-13 Includes\Cookies.sbi (*)
2010-12-14 Includes\Dialer.sbi (*)
2011-03-08 Includes\DialerC.sbi (*)
2011-02-24 Includes\HeavyDuty.sbi (*)
2010-11-30 Includes\Hijackers.sbi (*)
2011-03-08 Includes\HijackersC.sbi (*)
2010-09-15 Includes\iPhone.sbi (*)
2010-12-14 Includes\Keyloggers.sbi (*)
2011-03-08 Includes\KeyloggersC.sbi (*)
2004-11-29 Includes\LSP.sbi (*)
2011-02-24 Includes\Malware.sbi (*)
2011-03-16 Includes\MalwareC.sbi (*)
2011-02-24 Includes\PUPS.sbi (*)
2011-03-15 Includes\PUPSC.sbi (*)
2010-01-25 Includes\Revision.sbi (*)
2009-01-13 Includes\Security.sbi (*)
2011-03-08 Includes\SecurityC.sbi (*)
2008-06-03 Includes\Spybots.sbi (*)
2008-06-03 Includes\SpybotsC.sbi (*)
2011-02-24 Includes\Spyware.sbi (*)
2011-03-15 Includes\SpywareC.sbi (*)
2010-03-08 Includes\Tracks.uti
2010-12-28 Includes\Trojans.sbi (*)
2011-03-15 Includes\TrojansC-02.sbi (*)
2011-03-03 Includes\TrojansC-03.sbi (*)
2011-03-08 Includes\TrojansC-04.sbi (*)
2011-03-08 Includes\TrojansC-05.sbi (*)
2011-03-08 Includes\TrojansC.sbi (*)
2008-03-04 Plugins\Chai.dll
2008-03-05 Plugins\Fennel.dll
2008-02-26 Plugins\Mate.dll
2007-12-24 Plugins\TCPIPAddress.dll

I appreciate any advice you can give me. Thanks,
Val