How do I Download of 17.7.0.12 NIS

I'm having problems with my toolbars not working in Firefox 3.6.8.  According to this solution, it's because I don't have the latest version of NIS 2010 on my system (Windows 7) and have Norton IPS 2.0 and Norton Toolbar 4.0.  However when I run live update, or try to manually download the latest version, it tells me I have the latest version.  But when I look in the About on the product, it says I'm running 17.0.0.136 not 17.7.0.12 - so how can I get the latest version so I can get my toolbars working again?

 

Thanks?