Hey man. The way this works is Ning is basically saying that no invasive development can occur without using their API's which are ONLY through opensocial. So essentially, any jquery, or other injection methods are 'illegal'. lol. Sorry man. It sucks.
You had mentioned in a forum post that you might be able to code a ning network so it would be invite only for membership but still be viewable as a whole to the general public. Wondering about this for a new site I am working on.
My email is info(AT)louisvillephoto.org