Make an exception for an application

I would like for anything accessed through Kidzui to be allowed. 

I explicitly block youtube.com in Web Settings because I don't want my 9yo daughter to go browsing there directly.  However, Kidzui has staff-approved Youtube videos available for viewing which I would like my daughter to be able to access.

Without a feature for allowing kidzui.exe (which is what worked in Net Nanny) is there a solution?

I use OnlineFamily.Norton in conjuction with Norton Internet Security 2010 if that would help.

Thanks.