Re: correct homepage only loading for admin - permissions checked
Actually the Tiki page named "Homepage" can't be renamed. That is, if you do, a new page with that name will be created automatically. This is my understanding anyway. You should be able to edit "Homepage" but if you want a page with different content and a different name to be your site's homepage, you should make a new page rather than rename "Homepage"; then use the admin option (on Admin General page > Navigation tab, I think) to specify this new page as the site's homepage.
-- Gary