"OnlyTheBest" popup please help!

I have been getting a popup known as "Only The Best" and I ran Spybot,Coolwecshredder and Ad-aware but it keeps coming back please help me.I have placed a log from Hijackthis under this message, what should I delete.

Logfile of HijackThis v1.97.7
Scan saved at 8:52:23 PM, on 6/14/2004
Platform: Windows 2000 SP2 (WinNT 5.00.2195)
MSIE: Internet Explorer v6.00 SP1 (6.00.2800.1106)
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\spoolsv.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\system32\regsvc.exe
C:\WINDOWS\system32\MSTask.exe
C:\WINDOWS\System32\tcpsvcs.exe
C:\WINDOWS\System32\snmp.exe
C:\WINDOWS\System32\WBEM\WinMgmt.exe
C:\WINDOWS\System32\MsPMSPSv.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\Explorer.EXE
C:\PROGRA~1\LEXMAR~1\ACMonitor_X84-X85.exe
C:\PROGRA~1\LEXMAR~1\AcBtnMgr_X84-X85.exe
C:\WINDOWS\System32\spool\DRIVERS\W32X86\3\printray.exe
C:\Program Files\NetZero\exec.exe
C:\Program Files\NetZero\exec.exe
C:\My Download Files\HijackThis.exe
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Bar = http://red.clientapps.yahoo.com/customize/ie/defaults/sb/ymsgr6/*http://www.yahoo.com/ext/search/search.html
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Bar = http://red.clientapps.yahoo.com/customize/ie/defaults/sb/ymsgr6/*http://www.yahoo.com/ext/search/search.html
R1 - HKCU\Software\Microsoft\Internet Explorer\SearchURL,(Default) = http://red.clientapps.yahoo.com/customize/ie/defaults/su/ymsgr6/*http://www.yahoo.com
F1 - win.ini: run=
O2 - BHO: (no name) - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Adobe\Acrobat 6.0\Reader\ActiveX\AcroIEHelper.dll
O2 - BHO: (no name) - {53707962-6F74-2D53-2644-206D7942484F} - C:\PROGRA~1\SPYBOT~1\SDHelper.dll
O3 - Toolbar: &Yahoo! Companion - {EF99BD32-C1FB-11D2-892F-0090271D4F88} - C:\PROGRA~1\Yahoo!\COMPAN~1\Installs\cpn\ycomp5_3_12_0.dll
O3 - Toolbar: @msdxmLC.dll,-1@1033,&Radio - {8E718888-423F-11D2-876E-00A0C9082467} - C:\WINDOWS\System32\msdxm.ocx
O4 - HKLM\..\Run: [SystemTray] SysTray.Exe
O4 - HKLM\..\Run: [Lexmark X84-X85 Button Monitor] C:\PROGRA~1\LEXMAR~1\ACMonitor_X84-X85.exe
O4 - HKLM\..\Run: [Lexmark X84-X85 Button Manager] C:\PROGRA~1\LEXMAR~1\AcBtnMgr_X84-X85.exe
O4 - HKLM\..\Run: [PrinTray] C:\WINDOWS\System32\spool\DRIVERS\W32X86\3\printray.exe
O4 - HKLM\..\Run: [Openwares LiveUpdate] C:\Program Files\LiveUpdate\LiveUpdate.exe
O4 - HKLM\..\Run: [QuickTime Task] "C:\Program Files\QuickTime\qttask.exe" -atboottime
O4 - HKCU\..\Run: [uoltray] C:\Program Files\NetZero\exec.exe regrun
O6 - HKCU\Software\Policies\Microsoft\Internet Explorer\Restrictions present
O6 - HKCU\Software\Policies\Microsoft\Internet Explorer\Control Panel present
O8 - Extra context menu item: &Yahoo! Search - file:///C:\Program Files\Yahoo!\Common/ycsrch.htm
O8 - Extra context menu item: Yahoo! &Dictionary - file:///C:\Program Files\Yahoo!\Common/ycdict.htm
O8 - Extra context menu item: Yahoo! &Maps - file:///C:\Program Files\Yahoo!\Common/ycdict.htm
O9 - Extra button: Messenger (HKLM)
O9 - Extra 'Tools' menuitem: Yahoo! Messenger (HKLM)
O9 - Extra 'Tools' menuitem: PopThis! Options... (HKLM)
O13 - WWW. Prefix: http://
O16 - DPF: {02BF25D5-8C17-4B23-BC80-D3488ABDDC6B} (QuickTime Object) - http://www.apple.com/qtactivex/qtplugin.cab
O16 - DPF: {166B1BCA-3F9C-11CF-8075-444553540000} (Shockwave ActiveX Control) - http://fpdownload.macromedia.com/get/shockwave/cabs/director/sw.cab
O16 - DPF: {3E68E405-C6DE-49FF-83AE-41EE9F4C36CE} (Office Update Installation Engine) - http://office.microsoft.com/officeupdate/content/opuc.cab
O16 - DPF: {556DDE35-E955-11D0-A707-000000521957} - http://www.xblock.com/download/xclean_micro.exe
O16 - DPF: {56336BCB-3D8A-11D6-A00B-0050DA18DE71} - http://207.188.7.150/035abcf1f9de155de415/netzip/RdxIE2.cab
O16 - DPF: {9522B3FB-7A2B-4646-8AF6-36E7F593073C} (cpbrkpie Control) - http://a19.g.akamai.net/7/19/7125/1433/ftp.coupons.com/v3121/cpbrkpie.cab
O16 - DPF: {9F1C11AA-197B-4942-BA54-47A8489BB47F} (Update Class) - http://v4.windowsupdate.microsoft.com/CAB/x86/unicode/iuctl.CAB?37906.5542361111
O16 - DPF: {B9191F79-5613-4C76-AA2A-398534BB8999} (YAddBook Class) - http://us.dl1.yimg.com/download.yahoo.com/dl/installs/suite/autocomplete.cab
O16 - DPF: {D27CDB6E-AE6D-11CF-96B8-444553540000} (Shockwave Flash Object) - http://fpdownload.macromedia.com/pub/shockwave/cabs/flash/swflash.cab
O17 - HKLM\System\CCS\Services\Tcpip\..\{6D642BAD-0127-40D1-9E81-2D1B069CD9D6}: NameServer = 64.136.28.120 64.136.28.133

 

O9 - Extra 'Tools' menuitem: PopThis! Options... (HKLM)
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Bar = http://red.clientapps.yahoo.com/cus...rch/search.html
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Bar = http://red.clientapps.yahoo.com/cus...rch/search.html
R1 - HKCU\Software\Microsoft\Internet Explorer\SearchURL,(Default) = http://red.clientapps.yahoo.com/cus...//www.yahoo.com

fix those and see if your problem is fixed