Also I want to add that this is a fresh install (as of the 17th) and it is not an upgrade from 12.10, coincidently if you upgrade from 12.10 the software-center works just fine, as in you can properly view the "installed" tab.
Also I want to add that this is a fresh install (as of the 17th) and it is not an upgrade from 12.10, coincidently if you upgrade from 12.10 the software-center works just fine, as in you can properly view the "installed" tab.