HELP ME WITH THE LOGFILE PLS...

Logfile of HijackThis v1.99.0
Scan saved at 10:45:12 PM, on 2/19/2005
Platform: Windows 2000 (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\msdtc.exe
C:\PROGRA~1\Grisoft\AVGFRE~1\avgamsvr.exe
C:\PROGRA~1\Grisoft\AVGFRE~1\avgupsvc.exe
C:\WINNT\System32\svchost.exe
C:\Program Files\Kerio\Personal Firewall\persfw.exe
C:\WINNT\system32\regsvc.exe
C:\WINNT\system32\MSTask.exe
C:\WINNT\System32\tcpsvcs.exe
C:\WINNT\Explorer.exe
C:\WINNT\System32\snmp.exe
C:\Program Files\UWIN\usr\etc\ums.exe
C:\Program Files\UWIN\usr\etc\init.exe
C:\WINNT\System32\WBEM\WinMgmt.exe
C:\WINNT\System32\mqsvc.exe
C:\PROGRA~1\Grisoft\AVGFRE~1\avgcc.exe
C:\PROGRA~1\Grisoft\AVGFRE~1\avgemc.exe
C:\Program Files\Yahoo!\Messenger\ypager.exe
C:\Program Files\UWIN\usr\etc\inetd.exe
C:\Program Files\UWIN\usr\lib\cs\tcp\at\at.svc
C:\Program Files\Internet Explorer\IEXPLORE.EXE
C:\WINNT\System32\taskmgr.exe
D:\COMMON\Install\HijackThis_ver1.99.1.exe

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.smh.com.au/
O2 - BHO: Yahoo! Companion BHO - {02478D38-C3F9-4efb-9B51-7695ECA05670} - (no file)
O2 - BHO: AcroIEHlprObj Class - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Adobe\Acrobat 5.0\Reader\ActiveX\AcroIEHelper.ocx
O2 - BHO: YBIOCtrl Class - {EF99BD32-C1FB-11D2-892F-0090271D4F88} - (no file)
O3 - Toolbar: YBIOCtrl Class - {EF99BD32-C1FB-11D2-892F-0090271D4F88} - (no file)
O3 - Toolbar: @msdxmLC.dll,-1@1033,&Radio - {8E718888-423F-11D2-876E-00A0C9082467} - C:\WINNT\System32\msdxm.ocx
O4 - HKLM\..\Run: [Synchronization Manager] mobsync.exe /logon
O4 - HKLM\..\Run: [iTunesHelper] C:\Program Files\iTunes\iTunesHelper.exe
O4 - HKLM\..\Run: [AVG7_CC] C:\PROGRA~1\Grisoft\AVGFRE~1\avgcc.exe /STARTUP
O4 - HKLM\..\Run: [AVG7_EMC] C:\PROGRA~1\Grisoft\AVGFRE~1\avgemc.exe
O4 - HKCU\..\Run: [Yahoo! Pager] C:\Program Files\Yahoo!\Messenger\ypager.exe -quiet
O4 - HKCU\..\Run: [SpySweeper] "C:\Program Files\Webroot\Spy Sweeper\SpySweeper.exe" /0
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
O12 - Plugin for .pdf: C:\PROGRA~1\Plus!\MICROS~1\PLUGINS\nppdf32.dll
O12 - Plugin for .spop: C:\Program Files\Internet Explorer\Plugins\NPDocBox.dll
O13 - WWW. Prefix: http://
O16 - DPF: Yahoo! Chess - http://download.games.yahoo.com/game...ts/y/ct2_x.cab
O17 - HKLM\System\CCS\Services\Tcpip\..\{BFE566ED-E110-4732-972C-10D09195F8AD}: NameServer = 203.2.75.132 198.142.0.51
O23 - Service: AVG7 Alert Manager Server - GRISOFT, s.r.o. - C:\PROGRA~1\Grisoft\AVGFRE~1\avgamsvr.exe
O23 - Service: AVG7 Update Service - GRISOFT, s.r.o. - C:\PROGRA~1\Grisoft\AVGFRE~1\avgupsvc.exe
O23 - Service: Logical Disk Manager Administrative Service - VERITAS Software Corp. - C:\WINNT\System32\dmadmin.exe
O23 - Service: Kerio Personal Firewall - Kerio Technologies - C:\Program Files\Kerio\Personal Firewall\persfw.exe
O23 - Service: Uwin Master - Unknown - C:\Program Files\UWIN\usr\etc\ums.exe

You urgently require service pack 4 for Windows 2000!!
http://windowsupdate.microsoft.com/

Scan with hijackthis and tick the boxes next to all the following entries, then close all browser and explorer windows, and hit the "Fix checked" button.

O2 - BHO: Yahoo! Companion BHO - {02478D38-C3F9-4efb-9B51-7695ECA05670} - (no file)
O2 - BHO: YBIOCtrl Class - {EF99BD32-C1FB-11D2-892F-0090271D4F88} - (no file)
O3 - Toolbar: YBIOCtrl Class - {EF99BD32-C1FB-11D2-892F-0090271D4F88} - (no file)

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