disappearing homepage, popups, backdoor.small

I think i've been hijacked and infected. Everytime I open IE my homepage goes to about:blank, and AVG says BackDoor.small.3.BI and trojan Downloader.Agent.7.E detected. When I do a yahoo search a search pop-up comes up, and I keep getting pop-ups from Only The Best.

I've run AVG, adaware, and spybot search and destroy, nothing helps.
Thanks for the help.

Here is my hijackthis log:

Logfile of HijackThis v1.99.0
Scan saved at 9:55:41 PM, on 1/23/2005
Platform: Windows XP SP2 (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 SP2 (6.00.2900.2180)

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:\WINDOWS\system32\LEXBCES.EXE
C:\WINDOWS\system32\spoolsv.exe
C:\WINDOWS\system32\LEXPPS.EXE
C:\PROGRA~1\Grisoft\AVGFRE~1\avgamsvr.exe
C:\WINDOWS\Explorer.EXE
C:\PROGRA~1\Grisoft\AVGFRE~1\avgupsvc.exe
C:\Program Files\Executive Software\DiskeeperLite\DKService.exe
C:\WINDOWS\System32\svchost.exe
C:\Program Files\QuickTime\qttask.exe
C:\Program Files\Lexmark X1100 Series\lxbkbmgr.exe
C:\WINDOWS\System32\hkcmd.exe
C:\Program Files\Lexmark X1100 Series\lxbkbmon.exe
C:\Program Files\Real\RealPlayer\RealPlay.exe
C:\PROGRA~1\Grisoft\AVGFRE~1\avgcc.exe
C:\PROGRA~1\Grisoft\AVGFRE~1\avgemc.exe
C:\Program Files\DeskAd Service\DeskAdServ.exe
C:\Program Files\Windows ControlAd\WinCtlAd.exe
C:\Program Files\Windows ControlAd\WinCtlAdAlt.exe
C:\Program Files\DeskAd Service\DeskAdKeep.exe
C:\Program Files\BigFix\BigFix.exe
C:\Program Files\Microsoft Office\Office\OSA.EXE
C:\Program Files\Yahoo!\Messenger\ymsgr_tray.exe
C:\Program Files\The Weather Channel\The Weather Channel.exe
C:\Program Files\Internet Explorer\iexplore.exe
C:\Documents and Settings\Terry Ferrell\Desktop\computer support\hijackthis\HijackThis.exe

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Bar = res://C:\WINDOWS\system32\xaank.dll/sp.html#44768
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Page = res://C:\WINDOWS\system32\xaank.dll/sp.html#44768
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\xaank.dll/sp.html#44768
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Bar = res://C:\WINDOWS\system32\xaank.dll/sp.html#44768
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Page = res://C:\WINDOWS\system32\xaank.dll/sp.html#44768
R1 - HKCU\Software\Microsoft\Internet Explorer\Search,SearchAssistant = res://C:\WINDOWS\system32\xaank.dll/sp.html#44768
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,SearchAssistant = res://C:\WINDOWS\system32\xaank.dll/sp.html#44768
R1 - HKCU\Software\Microsoft\Internet Explorer\SearchURL,(Default) = http://red.clientapps.yahoo.com/customize/ycomp/defaults/su/*http://www.yahoo.com
R1 - HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings,ProxyServer = http=127.0.0.1:6711
R3 - Default URLSearchHook is missing
O2 - BHO: AcroIEHlprObj Class - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Adobe\Acrobat 6.0\Reader\ActiveX\AcroIEHelper.dll
O2 - BHO: (no name) - {D55E4350-B4BF-3181-80FC-C2FA41AE710C} - C:\WINDOWS\msol32.dll
O3 - Toolbar: Yahoo! Companion - {EF99BD32-C1FB-11D2-892F-0090271D4F88} - C:\Program Files\Yahoo!\Companion\Installs\cpn1\ycomp5_5_7_0.dll
O4 - HKLM\..\Run: [QuickTime Task] "C:\Program Files\QuickTime\qttask.exe" -atboottime
O4 - HKLM\..\Run: [LXSUPMON] C:\WINDOWS\System32\LXSUPMON.EXE RUN
O4 - HKLM\..\Run: [Lexmark X1100 Series] "C:\Program Files\Lexmark X1100 Series\lxbkbmgr.exe"
O4 - HKLM\..\Run: [HotKeysCmds] C:\WINDOWS\System32\hkcmd.exe
O4 - HKLM\..\Run: [BluetoothAuthenticationAgent] rundll32.exe irprops.cpl,,BluetoothAuthenticationAgent
O4 - HKLM\..\Run: [IgfxTray] C:\WINDOWS\System32\igfxtray.exe
O4 - HKLM\..\Run: [RealTray] C:\Program Files\Real\RealPlayer\RealPlay.exe SYSTEMBOOTHIDEPLAYER
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 - HKLM\..\Run: [ParentalFilter] C:\Program Files\Parental Filter\ParentalFilter.exe
O4 - HKLM\..\Run: [DeskAd Service] C:\Program Files\DeskAd Service\DeskAdServ.exe
O4 - HKLM\..\Run: [Windows ControlAd] C:\Program Files\Windows ControlAd\WinCtlAd.exe
O4 - HKLM\..\RunOnce: [DELDIR0.EXE] "C:\DOCUME~1\CHERYL~1\LOCALS~1\Temp\DELDIR0.EXE" "C:\Program Files\McAfee\McAfee Shared Components\Guardian\"
O4 - HKCU\..\Run: [MoneyAgent] "C:\Program Files\Microsoft Money\System\mnyexpr.exe"
O4 - HKCU\..\Run: [Yahoo! Pager] C:\Program Files\Yahoo!\Messenger\ypager.exe -quiet
O4 - Startup: PowerReg Scheduler.exe
O4 - Global Startup: BigFix.lnk = C:\Program Files\BigFix\BigFix.exe
O4 - Global Startup: Forget Me Not.lnk = C:\Program Files\Broderbund\AG Spirit\AGremind.exe
O4 - Global Startup: Office Startup.lnk = C:\Program Files\Microsoft Office\Office\OSA.EXE
O8 - Extra context menu item: &AOL Toolbar search - res://C:\Program Files\AOL Toolbar\toolbar.dll/SEARCH.HTML
O8 - Extra context menu item: &Yahoo! Search - file:///C:\Program Files\Yahoo!\Common/ycsrch.htm
O8 - Extra context menu item: Download with Star Downloader - C:\PROGRA~1\STARDO~1\sdie.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 - {4528BBE0-4E08-11D5-AD55-00010333D0AD} - C:\Program Files\Yahoo!\Messenger\yhexbmes0521.dll
O9 - Extra 'Tools' menuitem: Yahoo! Messenger - {4528BBE0-4E08-11D5-AD55-00010333D0AD} - C:\Program Files\Yahoo!\Messenger\yhexbmes0521.dll
O9 - Extra button: PartyPoker.com - {B7FE5D70-9AA2-40F1-9C6B-12A255F085E1} - C:\Program Files\PartyPoker\IEExtension.dll
O9 - Extra 'Tools' menuitem: PartyPoker.com - {B7FE5D70-9AA2-40F1-9C6B-12A255F085E1} - C:\Program Files\PartyPoker\IEExtension.dll
O9 - Extra button: Real.com - {CD67F990-D8E9-11d2-98FE-00C0F0318AFE} - C:\WINDOWS\System32\Shdocvw.dll
O9 - Extra button: Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Program Files\Messenger\msmsgs.exe
O9 - Extra 'Tools' menuitem: Windows Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Program Files\Messenger\msmsgs.exe
O12 - Plugin for .spop: C:\Program Files\Internet Explorer\Plugins\NPDocBox.dll
O14 - IERESET.INF: START_PAGE_URL=http://www.emachines.com
O15 - Trusted Zone: *.frame.crazywinnings.com
O15 - Trusted Zone: *.scoobidoo.com
O15 - Trusted Zone: *.static.topconverting.com
O15 - Trusted Zone: *.frame.crazywinnings.com (HKLM)
O15 - Trusted Zone: *.scoobidoo.com (HKLM)
O15 - Trusted Zone: *.static.topconverting.com (HKLM)
O15 - Trusted IP range: 206.161.125.149
O15 - Trusted IP range: 206.161.125.149 (HKLM)
O16 - DPF: Yahoo! Poker - http://download.games.yahoo.com/games/clients/y/pt1_x.cab
O16 - DPF: Yahoo! Spades - http://download.games.yahoo.com/games/clients/y/st2_x.cab
O16 - DPF: {22A88341-AFCB-45F0-A856-C2BAE74F878E} (InstallX Class) - http://www.20x2p.com/14cc12cf/enter.cab
O16 - DPF: {9A9307A0-7DA4-4DAF-B042-5009F29E09E1} (ActiveScan Installer Class) - http://www.pandasoftware.com/activescan/as5/asinst.cab
O16 - DPF: {A17E30C4-A9BA-11D4-8673-60DB54C10000} (YahooYMailTo Class) - http://us.dl1.yimg.com/download.yahoo.com/dl/installs/yse/ymmapi_416.dll
O16 - DPF: {AB29A544-D6B4-4E36-A1F8-D3E34FC7B00A} (WTHoster Class) - http://install.wildtangent.com/bgn/partners/shockwave/bettybad/install.cab
O16 - DPF: {B9191F79-5613-4C76-AA2A-398534BB8999} (YAddBook Class) - http://us.dl1.yimg.com/download.yahoo.com/dl/installs/suite/yautocomplete.cab
O16 - DPF: {B942A249-D1E7-4C11-98AE-FCB76B08747F} (RealArcadeRdxIE Class) - http://games-dl.real.com/gameconsole/Bundler/CAB/RealArcadeRdxIE.cab
O16 - DPF: {DF780F87-FF2B-4DF8-92D0-73DB16A1543A} (PopCapLoader Object) - http://www.shockwave.com/content/zuma/popcaploader_v5.cab
O16 - DPF: {E855A2D4-987E-4F3B-A51C-64D10A7E2479} (EPSImageControl Class) - http://tools.ebayimg.com/eps/activex/EPSControl_v1-32.cab
O16 - DPF: {F58E1CEF-A068-4C15-BA5E-587CAF3EE8C6} (MSN Chat Control 4.5) - http://fdl.msn.com/public/chat/msnchat45.cab
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: Diskeeper - Executive Software International, Inc. - C:\Program Files\Executive Software\DiskeeperLite\DKService.exe
O23 - Service: LexBce Server - Lexmark International, Inc. - C:\WINDOWS\system32\LEXBCES.EXE
O23 - Service: ZESOFT - Unknown - C:\WINDOWS\zeta.exe