Upgrade from NIS 2009 to NIS 2010

Hello all.  I just renewed my subscription for NIS 2009 and wanted to upgrade to NIS 2010.  Should I allow the Norton Update Center to install NIS 2010 over NIS 2009, or should I run the removal tool and install it by itself.  I have other Norton products installed and don't really wish to have them removed, but I also do not want any issues with the upgrade, like there was with past versions.  Thank you in advance.

 

Tim