Hi Eric,
This is Mike from the Norton Authorized Support Team.
It appears that the "Anti-Virus 2009" infection is causing problems with the installation of Norton Internet Security. Symantec does have the ability to remove this infection and we also have a manual removal process that you can follow if it is not removed by doing a "Full System Scan."
The first step you should take is to use the Norton Online Security Scanner. Using Internet Explorer 5.5 or higher, click on the link below and follow the instructions.
http://security.symantec.com/sscv6/WelcomePage.asp
When the scan is complete you should then restart your computer and make sure that you do not have any other third-party security software installed which may conflict with the installation of Norton Internet Security.
Next, follow the instructions below to properly remove and reinstall Norton Internet Security.
1. Click on the following link to download the Norton Removal Tool:
http://service1.symantec.com/SUPPORT/tsgeninfo.nsf/docid/2005033108162039?Open&docid=2001074957656166&nsf=sunset-c2002kb.nsf&view=0
2. After you run the tool, please restart your computer. Then log in to Windows again and run the removal tool again. Restart your computer after it is finished running the second time as well.
3. Make sure that your internet connection is working properly, and then reinstall Norton Internet Security.
4. When the installation is complete, launch Norton Internet Security and manually run LiveUpdate.
5. When the LiveUpdate process is complete, restart your computer into Windows Safe Mode, launch Norton Internet Security and perform a "Full System Scan."
If Norton Internet Security is unable to remove the infection, please carefully follow the instructions in the following document to manually remove the infection.
http://www.symantec.com/security_response/writeup.jsp?docid=2008-082521-2037-99&tabid=3
Thank you,
Mike
Michael York
Norton Authorized Support Team
Symantec Corporation