devices missing... please help

[venisha]

i run windows xp on a dell dimension. it wouldnt recognize my scanner and camera so i unplugged them and replugged... did a system restore point... tried uninstall and reinstall... basically i tried everything and reached that horrid point of doing a full factory reset. but even after that it still can't find my devices. its as if they are nowhere to be found. no little pop ups saying "new hardware found" ... the wizards say there is nothing there to run. please if anybody knows of any way to fix i'm open to just about anything since i already set the machine back to factory and already lost everything thanks in advance

Here's the hijack log...

Logfile of Trend Micro HijackThis v2.0.2
Scan saved at 6:20:33 PM, on 9/8/2009
Platform: Windows XP SP2 (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 SP2 (6.00.2900.2180)
Boot mode: Normal

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\spoolsv.exe
C:\WINDOWS\ehome\ehtray.exe
C:\Program Files\Java\j2re1.4.2_03\bin\jusched.exe
C:\Program Files\Intel\Modem Event Monitor\IntelMEM.exe
C:\Program Files\CyberLink\PowerDVD\DVDLauncher.exe
C:\WINDOWS\system32\dla\tfswctrl.exe
C:\Program Files\Real\RealPlayer\RealPlay.exe
C:\Program Files\Common Files\InstallShield\UpdateService\issch.exe
C:\WINDOWS\eHome\ehRecvr.exe
C:\WINDOWS\eHome\ehSched.exe
C:\WINDOWS\system32\HPZipm12.exe
C:\WINDOWS\system32\dllhost.exe
C:\WINDOWS\system32\wscntfy.exe
C:\WINDOWS\eHome\ehmsas.exe
C:\WINDOWS\System32\svchost.exe
C:\Documents and Settings\Venisha\My Documents\Downloads\avast_home_setup.exe
C:\WINDOWS\system32\wuauclt.exe
C:\WINDOWS\system32\msiexec.exe
C:\Documents and Settings\Venisha\Local Settings\Application Data\Google\Chrome\Application\chrome.exe
C:\WINDOWS\system32\wuauclt.exe
C:\Documents and Settings\Venisha\Local Settings\Application Data\Google\Chrome\Application\chrome.exe
C:\Documents and Settings\Venisha\Local Settings\Application Data\Google\Chrome\Application\chrome.exe
C:\Documents and Settings\Venisha\Local Settings\Application Data\Google\Chrome\Application\chrome.exe
C:\Program Files\Trend Micro\HijackThis\HijackThis.exe

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.home.yahoo.com/
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://www.dell.com
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.dell.com
O2 - BHO: AcroIEHlprObj Class - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Adobe\Acrobat 6.0\Reader\ActiveX\AcroIEHelper.dll
O2 - BHO: DriveLetterAccess - {5CA3D70E-1895-11CF-8E15-001234567890} - C:\WINDOWS\system32\dla\tfswshx.dll
O2 - BHO: GoogleAFE - {CA6319C0-31B7-401E-A518-A07C3DB8F777} - c:\Program Files\GoogleAFE\GoogleAE.dll
O4 - HKLM\..\Run: [ehTray] C:\WINDOWS\ehome\ehtray.exe
O4 - HKLM\..\Run: [SunJavaUpdateSched] C:\Program Files\Java\j2re1.4.2_03\bin\jusched.exe
O4 - HKLM\..\Run: [IntelMeM] C:\Program Files\Intel\Modem Event Monitor\IntelMEM.exe
O4 - HKLM\..\Run: [DVDLauncher] "C:\Program Files\CyberLink\PowerDVD\DVDLauncher.exe"
O4 - HKLM\..\Run: [QuickTime Task] "C:\Program Files\QuickTime\qttask.exe" -atboottime
O4 - HKLM\..\Run: [dla] C:\WINDOWS\system32\dla\tfswctrl.exe
O4 - HKLM\..\Run: [BuildBU] c:\dell\bldbubg.exe
O4 - HKLM\..\Run: [RealTray] C:\Program Files\Real\RealPlayer\RealPlay.exe SYSTEMBOOTHIDEPLAYER
O4 - HKLM\..\Run: [ISUSScheduler] "C:\Program Files\Common Files\InstallShield\UpdateService\issch.exe" -start
O4 - HKLM\..\Run: [ISUSPM Startup] "C:\Program Files\Common Files\InstallShield\UpdateService\ISUSPM.exe" -startup
O4 - HKCU\..\Run: [Google Update] "C:\Documents and Settings\Venisha\Local Settings\Application Data\Google\Update\GoogleUpdate.exe" /c
O4 - Global Startup: Microsoft Office.lnk = C:\Program Files\Microsoft Office\Office10\OSA.EXE
O9 - Extra button: (no name) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\j2re1.4.2_03\bin\npjpi142_03.dll
O9 - Extra 'Tools' menuitem: Sun Java Console - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\j2re1.4.2_03\bin\npjpi142_03.dll
O9 - Extra button: (no name) - {B205A35E-1FC4-4CE3-818B-899DBBB3388C} - C:\Program Files\Common Files\Microsoft Shared\Encarta Search Bar\ENCSBAR.DLL
O9 - Extra button: Real.com - {CD67F990-D8E9-11d2-98FE-00C0F0318AFE} - C:\WINDOWS\system32\Shdocvw.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
O23 - Service: Intel NCS NetService (NetSvc) - Intel(R) Corporation - C:\Program Files\Intel\PROSetWired\NCS\Sync\NetSvc.exe
O23 - Service: Pml Driver HPZ12 - HP - C:\WINDOWS\system32\HPZipm12.exe

--
End of file - 4389 bytes