Norton Antivirus to OS X 10.6.8

When I try the solution to bobmusic's question on thread

 

http://community.norton.com/t5/Norton-for-Mac/antivirus-for-mac/m-p/686369/highlight/true#M5460

 

I get Page Not Found.

 

http://buy.norton.com/estore/mf/pageNotFound

 

Is there Antivirus to 10.6.8?

The version to be used for 10.6.8 is NAV 11.1.  If you purchase the NAV 12 (which is designed for 10.7), it includes an installer for NAV 11.1 in the folder "For Mac OS X 10.4 - 10.6 Users".