Just need some guidance . . .

Hi, i was reffered to this site for help by my father because he was very impressed by the amount of help he received from members.

MY PROBLEM IN DETAIL:
on my laptop i am running windows 2000 pro and i use a wireless internet connection. i am not sure of the risks i run using wireless internet, and ive been very satisfied with my laptop since i bought it. it runs smoothly most of the time, unless my signal gets weak. i have had a friend staying over for a few days that does not own a computer, so i was a little afraid to let him use it, but i did anyway. he knew how to surf the net, etc . . . but i am very cautious of the sites i visit (except myspace) because i dont want to be obvious prey for money hungry companies that want to infect my computer.

ANYWAY– while he was using it suddenly there was a loud rapid clicking noise and a loud rapid beep coming from the speakers. the mouse turned into the hourglass and started flashing. after i closed the internet explorer window he was using the noise stopped. i opened a new window and came to tomcoyote. when i needed to open my email for the account registration email, every time i clicked on "mail" i was immediately sent to the error page that windows gives when it says that my search page cannot be opened. then it began to do it automatically when i got onto yahoo. the page would be there just long enough to glance at and—zap—i automatically landed on the error page without even clicking anything. i restarted my computer.

i deleted my temporary internet files and cookies because i do this routinely, but havent in the past few days. i then became able to access the email via yahoo and get hijackthis, and access to your forums.

i hope im doing this correctly, so here is my log from the scan of hijackthis on my computer:

MY LOG:

Logfile of HijackThis v1.99.1
Scan saved at 11:41:21 PM, on 1/14/2007
Platform: Windows 2000 SP4 (WinNT 5.00.2195)
MSIE: Internet Explorer v6.00 SP1 (6.00.2800.1106)

Running processes:
C:\WINNT\System32\smss.exe
C:\WINNT\system32\csrss.exe
C:\WINNT\system32\winlogon.exe
C:\WINNT\system32\services.exe
C:\WINNT\system32\lsass.exe
C:\WINNT\system32\svchost.exe
C:\WINNT\system32\spoolsv.exe
C:\WINNT\System32\Ati2evxx.exe
C:\WINNT\System32\svchost.exe
C:\Program Files\Ahead\InCD\InCDsrv.exe
C:\WINNT\system32\regsvc.exe
C:\WINNT\system32\MSTask.exe
C:\Program Files\Spyware Doctor\sdhelp.exe
C:\WINNT\System32\WBEM\WinMgmt.exe
C:\WINNT\system32\svchost.exe
C:\WINNT\Explorer.EXE
C:\Program Files\ATI Technologies\ATI Control Panel\atiptaxx.exe
C:\Program Files\CyberLink\PowerDVD\PDVDServ.exe
C:\Program Files\Ahead\InCD\InCD.exe
C:\Program Files\Java\jre1.5.0_09\bin\jusched.exe
C:\Program Files\HP\HP Software Update\HPWuSchd2.exe
C:\Program Files\QuickTime\qttask.exe
C:\Program Files\Spyware Doctor\swdoctor.exe
C:\Program Files\HP\Digital Imaging\bin\hpqtra08.exe
C:\Program Files\Wireless\WE302R\Gcc.exe
C:\Program Files\Common Files\Microsoft Shared\Works Shared\wkcalrem.exe
C:\Program Files\Wireless\WE302R\OdHost.exe
C:\Program Files\HP\Digital Imaging\bin\hpqgalry.exe
C:\Program Files\Internet Explorer\iexplore.exe
C:\highjackthis\HijackThis.exe

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.yahoo.com/
O2 - BHO: AcroIEHlprObj Class - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Adobe\Acrobat 7.0\ActiveX\AcroIEHelper.dll
O2 - BHO: PCTools Site Guard - {5C8B2A36-3DB1-42A4-A3CB-D426709BBFEB} - C:\PROGRA~1\SPYWAR~1\tools\iesdsg.dll
O2 - BHO: SSVHelper Class - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - C:\Program Files\Java\jre1.5.0_09\bin\ssv.dll
O2 - BHO: Google Toolbar Helper - {AA58ED58-01DD-4d91-8333-CF10577473F7} - c:\program files\google\googletoolbar2.dll
O2 - BHO: PCTools Browser Monitor - {B56A7D7D-6927-48C8-A975-17DF180C71AC} - C:\PROGRA~1\SPYWAR~1\tools\iesdpb.dll
O3 - Toolbar: @msdxmLC.dll,-1@1033,&Radio - {8E718888-423F-11D2-876E-00A0C9082467} - C:\WINNT\System32\msdxm.ocx
O3 - Toolbar: &Google - {2318C2B1-4965-11d4-9B18-009027A5CD4F} - c:\program files\google\googletoolbar2.dll
O4 - HKLM\..\Run: [Synchronization Manager] mobsync.exe /logon
O4 - HKLM\..\Run: [ATIPTA] C:\Program Files\ATI Technologies\ATI Control Panel\atiptaxx.exe
O4 - HKLM\..\Run: [NeroFilterCheck] C:\WINNT\system32\NeroCheck.exe
O4 - HKLM\..\Run: [RemoteControl] "C:\Program Files\CyberLink\PowerDVD\PDVDServ.exe"
O4 - HKLM\..\Run: [InCD] C:\Program Files\Ahead\InCD\InCD.exe
O4 - HKLM\..\Run: [SunJavaUpdateSched] "C:\Program Files\Java\jre1.5.0_09\bin\jusched.exe"
O4 - HKLM\..\Run: [HP Software Update] "C:\Program Files\HP\HP Software Update\HPWuSchd2.exe"
O4 - HKLM\..\Run: [QuickTime Task] "C:\Program Files\QuickTime\qttask.exe" -atboottime
O4 - HKLM\..\Run: [WorksFUD] C:\Program Files\Microsoft Works\wkfud.exe
O4 - HKLM\..\Run: [Microsoft Works Portfolio] C:\Program Files\Microsoft Works\WksSb.exe /AllUsers
O4 - HKLM\..\Run: [Microsoft Works Update Detection] C:\Program Files\Common Files\Microsoft Shared\Works Shared\WkUFind.exe
O4 - HKCU\..\Run: [Spyware Doctor] "C:\Program Files\Spyware Doctor\swdoctor.exe" /Q
O4 - Global Startup: Adobe Reader Speed Launch.lnk = C:\Program Files\Adobe\Acrobat 7.0\Reader\reader_sl.exe
O4 - Global Startup: HP Digital Imaging Monitor.lnk = C:\Program Files\HP\Digital Imaging\bin\hpqtra08.exe
O4 - Global Startup: HP Image Zone Fast Start.lnk = C:\Program Files\HP\Digital Imaging\bin\hpqthb08.exe
O4 - Global Startup: IEEE802.11b WLAN Card Utility.lnk = C:\Program Files\Wireless\WE302R\Gcc.exe
O4 - Global Startup: Microsoft Office.lnk = C:\Program Files\Microsoft Office\Office10\OSA.EXE
O4 - Global Startup: Microsoft Works Calendar Reminders.lnk = C:\Program Files\Common Files\Microsoft Shared\Works Shared\wkcalrem.exe
O9 - Extra button: (no name) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\jre1.5.0_09\bin\ssv.dll
O9 - Extra 'Tools' menuitem: Sun Java Console - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\jre1.5.0_09\bin\ssv.dll
O9 - Extra button: Spyware Doctor - {2D663D1A-8670-49D9-A1A5-4C56B4E14E84} - C:\PROGRA~1\SPYWAR~1\tools\iesdpb.dll
O9 - Extra button: Related - {c95fe080-8f5d-11d2-a20b-00aa003c157a} - C:\WINNT\web\related.htm
O9 - Extra 'Tools' menuitem: Show &Related Links - {c95fe080-8f5d-11d2-a20b-00aa003c157a} - C:\WINNT\web\related.htm
O23 - Service: Ati HotKey Poller - Unknown owner - C:\WINNT\System32\Ati2evxx.exe
O23 - Service: Logical Disk Manager Administrative Service (dmadmin) - VERITAS Software Corp. - C:\WINNT\System32\dmadmin.exe
O23 - Service: InCD Helper (InCDsrv) - Ahead Software AG - C:\Program Files\Ahead\InCD\InCDsrv.exe
O23 - Service: PC Tools Spyware Doctor (SDhelper) - PC Tools Research Pty Ltd - C:\Program Files\Spyware Doctor\sdhelp.exe