relentless popups & hijacked searches

Hi all, Thanks for any help you can provide. My 12 y.o. stepson is into the shareware gaming and he landed us some nasties, some of which have already been removed by AVG Internet Security 7.5 and some HiJack This repairs/deletions, already completed before I found this neat forum. In SAFE MODE, I removed everything I felt comfortable tampering with. It has made no difference. We experience the pop ups and hi jacked searches regardless. I'm hoping someone can help, as some of these ads are disturbing ("Have sex like you had in high school") Thanks in advance!!! -Daniel Here's the logfile...... Logfile of HijackThis v1.99.1 Scan saved at 12:28:27 PM, on 9/27/2007 Platform: Windows XP SP2 (WinNT 5.01.2600) MSIE: Internet Explorer v7.00 (7.00.6000.16512) 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\Explorer.EXE C:\Documents and Settings\Administrator\Desktop\HijackThis.exe O4 - HKLM\..\Run: [ATIPTA] "C:\Program Files\ATI Technologies\ATI Control Panel\atiptaxx.exe" O10 - Unknown file in Winsock LSP: c:\windows\system32\avgfwafu.dll O10 - Unknown file in Winsock LSP: c:\windows\system32\avgfwafu.dll O10 - Unknown file in Winsock LSP: c:\windows\system32\avgfwafu.dll O10 - Unknown file in Winsock LSP: c:\windows\system32\avgfwafu.dll O10 - Unknown file in Winsock LSP: c:\windows\system32\avgfwafu.dll O23 - Service: Ati HotKey Poller - ATI Technologies Inc. - C:\WINDOWS\System32\Ati2evxx.exe O23 - Service: ATI Smart - Unknown owner - C:\WINDOWS\system32\ati2sgag.exe O23 - Service: AVG7 Alert Manager Server (Avg7Alrt) - GRISOFT, s.r.o. - C:\PROGRA~1\Grisoft\AVG7\avgamsvr.exe O23 - Service: AVG7 Update Service (Avg7UpdSvc) - GRISOFT, s.r.o. - C:\PROGRA~1\Grisoft\AVG7\avgupsvc.exe O23 - Service: AVG7 Resident Shield Service (AvgCoreSvc) - GRISOFT, s.r.o. - C:\PROGRA~1\Grisoft\AVG7\avgrssvc.exe O23 - Service: AVG E-mail Scanner (AVGEMS) - GRISOFT, s.r.o. - C:\PROGRA~1\Grisoft\AVG7\avgemc.exe O23 - Service: AVG Firewall (AVGFwSrv) - GRISOFT, s.r.o. - C:\PROGRA~1\Grisoft\AVG7\avgfwsrv.exe O23 - Service: Command Service (cmdService) - Unknown owner - C:\WINDOWS\RXJpYyBLZWxsZXI\command.exe (file missing) O23 - Service: Google Updater Service (gusvc) - Google - C:\Program Files\Google\Common\Google Updater\GoogleUpdaterService.exe O23 - Service: InstallDriver Table Manager (IDriverT) - Macrovision Corporation - C:\Program Files\Common Files\InstallShield\Driver\11\Intel 32\IDriverT.exe O23 - Service: iPod Service - Apple Computer, Inc. - C:\Program Files\iPod\bin\iPodService.exe O23 - Service: LexBce Server (LexBceS) - Lexmark International, Inc. - C:\WINDOWS\system32\LEXBCES.EXE O23 - Service: (Network Monitor) - Unknown owner - C:\Program Files\Network Monitor\netmon.exe (file missing)