virus help? backdoor.tidserv!inf

Hi, I was told by my norton 2004 antivirus that I had the backdoor.tidserv!inf virus. I went through the steps to remove it that were stated in the symantec help here:

 

http://www.symantec.com/security_response/writeup.jsp?docid=2008-111113-1112-99&tabid=3

 

, but when I type this:   Expand %DriveLetter%\i386\advapi32.dl_   

into the recovery console, it says that it is a parameter error. 

 

So I used Norman malaware scanner to try and erase the files, and erased all my temp files, but nothing seems to work.

 

When using google I still get re-routed to the wrong pages, usually to a yahoo page. Can anyone help? Thank you.