help me please (HJT log)

hi i have a brand new windows xp and already there are things wrong with it. i get this message after being on the computer that says i have low memory (Windows - Virtual Memory Minimum Too Low. Your system is ow on virtual memory. Windows is increasing the size of your virtual memory paging file....etc) but i've only used 5.05 gb out of 67.9 gb . also, when i start my computer i get this bridge.dll error. i downloaded the hijackthis and here is my log. it'd be great if someone helped me out step by step cause i'm 16 and i don't know anything about computers =). thank you.

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:\Program Files\Common Files\Symantec Shared\ccSetMgr.exe
c:\Program Files\Common Files\Symantec Shared\ccEvtMgr.exe
C:\WINDOWS\Explorer.EXE
C:\WINDOWS\system32\spoolsv.exe
c:\Program Files\Norton AntiVirus\navapsvc.exe
C:\windows\system\hpsysdrv.exe
C:\WINDOWS\System32\hkcmd.exe
C:\WINDOWS\System32\hphmon05.exe
C:\HP\KBD\KBD.EXE
C:\Program Files\Common Files\Symantec Shared\ccApp.exe
C:\WINDOWS\LTMSG.exe
C:\WINDOWS\ALCXMNTR.EXE
C:\Program Files\Winamp\Winampa.exe
C:\WINDOWS\System32\javaw.exe
C:\WINDOWS\System32\rundll32.exe
C:\WINDOWS\System32\xywkuif.exe
C:\PROGRA~1\PANICW~1\POP-UP~1\PSFree.exe
C:\Program Files\Compaq Connections\1940576\Program\BackWeb-1940576.exe
C:\Program Files\interMute\SpamSubtract\SpamSub.exe
C:\WINDOWS\System32\wuauclt.exe
C:\Program Files\MSN Messenger\msnmsgr.exe
C:\Program Files\Common Files\Sonic\Update Manager\sgtray\sgtray.exe
C:\Program Files\Internet Explorer\iexplore.exe
C:\Documents and Settings\Owner\My Documents\Treh\HijackThis.exe

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Bar = file://C:\DOCUME~1\Owner\LOCALS~1\Temp\sp.html
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Page = file://C:\DOCUME~1\Owner\LOCALS~1\Temp\sp.html
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://qus10.hpwis.com/
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Default_Search_URL = http://srch-qus10.hpwis.com/
R1 - HKCU\Software\Microsoft\Internet Explorer\Search,SearchAssistant = file://C:\DOCUME~1\Owner\LOCALS~1\Temp\sp.html
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Bar = file://C:\DOCUME~1\Owner\LOCALS~1\Temp\sp.html
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Page = file://C:\DOCUME~1\Owner\LOCALS~1\Temp\sp.html
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,SearchAssistant = file://C:\DOCUME~1\Owner\LOCALS~1\Temp\sp.html
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,HomeOldSP = about:blank
O2 - BHO: (no name) - {0000607D-D204-42C7-8E46-216055BF9918} - C:\WINDOWS\mxTarget.dll
O2 - BHO: MyWay Search Assistant BHO - {04079851-5845-4dea-848C-3ECD647AA554} - C:\Program Files\MyWay\SrchAstt\1.bin\MYSRCHAS.DLL
O2 - BHO: (no name) - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Adobe\Acrobat 6.0\Reader\ActiveX\AcroIEHelper.dll
O2 - BHO: (no name) - {4A2AACF3-ADF6-11D5-98A9-00E018981B9E} - C:\Program Files\NewDotNet\newdotnet6_30.dll
O2 - BHO: (no name) - {BA5B9DB4-F3F0-4215-A5EB-50BD9ACD65E4} - C:\WINDOWS\System32\igimf.dll
O2 - BHO: (no name) - {BDF3E430-B101-42AD-A544-FADC6B084872} - c:\Program Files\Norton AntiVirus\NavShExt.dll
O2 - BHO: LBBHO - {EFD84954-6B46-42f4-81F3-94CE9A77052D} - C:\WINDOWS\lbbho.dll