Hi headtotoe, welcome to DaniWeb :D
You haven't done the most important thing yet :), go to Windows Update and get SP1a for both XP and IE.
Download and run:
HSRemove -- http://www.majorgeeks.com/download4286.html
CWShredder -- http://www.intermute.com/spysubtract/cwshredder_download.html
About:Buster -- http://www.majorgeeks.com/download4289.html
Check for updates before scanning.
Scan withhijackthis and have it fix the following entries:
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Bar = res://C:\WINDOWS\system32\xgarx.dll/sp.html#89411
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Page = res://C:\WINDOWS\system32\xgarx.dll/sp.html#89411
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = about:blank
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Search_URL = res://C:\WINDOWS\system32\xgarx.dll/sp.html#89411
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Bar = res://C:\WINDOWS\system32\xgarx.dll/sp.html#89411
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Page = res://C:\WINDOWS\system32\xgarx.dll/sp.html#89411
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,SearchAssistant = res://C:\WINDOWS\system32\xgarx.dll/sp.html#89411
R3 - Default URLSearchHook is missing
O4 - Startup: DLHelperEXE.exe
O9 - Extra button: Related - {c95fe080-8f5d-11d2-a20b-00aa003c157a} - C:\WINDOWS\web\related.htm
O9 - Extra 'Tools' menuitem: Show &Related Links - {c95fe080-8f5d-11d2-a20b-00aa003c157a} - C:\WINDOWS\web\related.htm
O16 - DPF: {15B782AF-55D8-11D1-B477-006097098764} (Macromedia Authorware Web Player Control) - http://mc.nacs.uci.edu/mcweb/awswax.cab
O16 - DPF: {6414512B-B978-451D-A0D8-FCFDF33E833C} (WUWebControl Class) - http://v5.windowsupdate.microsoft.c...b?1095441821435
O16 - DPF: {74D05D43-3236-11D4-BDCD-00C04F9A3B61} (HouseCall Control) - http://a840.g.akamai.net/7/840/537/...all/xscan53.cab
O16 - DPF: {AED98630-0251-4E83-917D-43A23D66D507} (WebHandler Class) - http://activex.microgaming.com/DLhe...n7/dlhelper.cab
O16 - DPF: {D8089245-3211-40F6-819B-9E5E92CD61A2} (FlashXControl Object) - https://register3.valueactive.com/m...OCX/FlashAX.cab
O23 - Service: Network Security Service ( 11Fßä#·ºÄÖ`I) - Unknown owner - C:\WINDOWS\ntyi32.exe" /s (file missing)
Be sure all windows are closed, other then hijackthis, before hitting Fix checked.
Go to the following locations and delete the highlighted files:
C:\WINDOWS\web\related.htm
C:\WINDOWS\system32\xgarx.dll
Locate the following files, right-click on them, and give us whatever info you can (Manufacturer, Version, etc.):
C:\WINDOWS\system32\winql.dll
C:\WINDOWS\netwn.exe
You may wish to consider disabling CTHELPER.EXE -- quote from sysinfo:
CTHELPER is a background task that is a plug-in manager for Creative drivers. The theory is that 3rd party manufacturers can use the CTHELPER plug-in interface to produce drivers, add-on features, and fixes that will integrate with a tighter fit with Creative’s sound drivers and utilities. Given its purpose CTHELPER would normally be classified as a "leave alone" background task. It also allows Creative speaker setup to be synchronized with Windows Control Panel speaker setting. Without it running that check box in Creative speaker setting is not functional (settings are not in sync). Unfortunately there are often problems with CTHELPER, most notably that it can use 100% of CPU time so it's best left disabled unless you need it.
Reboot, close any open browser windows, scan with HJT, and post a new log please.