In post ads only for super admin possible?

Hi,

I’m interested in using the ‘in post ads’ plugins on my multisite install. However I don’t want the sub site owners to have access to the plugin. My multisite is a ‘free host’ type site where I give free blogs to people. I’d like to use the ‘in post ads’ to place ads on all the sub sites but not let the sub site owners use the plugin at all. Is this possible?

Thanks!

Mood