How do I unprotect front pages in protected mode?

I'm building a community multi-site which is not open to new registrations at the moment, but where I do have a few needed sites of my own registered which are integral extensions to the core purpose of the multi-site.

My problem is that the front pages of my sub sites are protected. How do I unprotect them so that I can place content on them for public consumption?

I'm building a music community for artists and the sub sites are radio stations which need to up and running before I can even consider opening registrations to the public.

Thanks