i cant get rid of win32nuqel and bankerfox!!! please help!

i am running a windows xp os on a dell mini. i have looked at the forums to try to manually remove these infections myself but all of the programs i have downloaded to remove these infections come up infected and i cannot use them. i tried combofix, malware bites, spyware doctor, etc. please help. i cant even get task manager to work at the moment. its sayings wuauclt.exe is infected and searchprotocol.exe is infected among others. thanks!!

Download OTL by OldTimer to your Desktop.

• Close all windows and double click OTL.exe
  
• Click Run Scan and let the program run uninterrupted
  
• It will produce two logs for you, one will pop up - OTL.txt, the other will be saved on your Desktop - Extras.txt. Post both logs in this thread.
  
• You may need to use two posts to get it all.
  

i download olt but it says it was infected. what should i do?

Rename it to explorer.exe and see if it will run then.