We ran into a problem that I did not find a post for, so I thought I would post the problem and solution:

Problem:
I think this is a new feature in DNN6, when operating in the Host Menu area (e.g. Host Settings, Extensions, etc) we added a new page.  Because of where we were when we added the page, DNN assumed that we wanted to create a Host Page (accessible by only the super users login but across any portal).  Not realizing we had inadvertently done this, we tried to use the Admin > Pages screen to move it out of the Host Menu, which kinda worked.  However, the page was still not available to "All Users" nor was int he Portal Pages section.

Solution:
In the DNN DB, in the Tabs table change the PortalID from Null to the PortalID you want the page to show up under.  You can do this in SQL Studio or Host > SQL and run the following:

UPDATE TABS
SET PortalID = {Enter your Portal ID, here}
WHERE TABID = {Enter your Tab ID, here}

• If you do not know the portal ID, you should be able to find it under Host > Site Management listed as the SiteID, but most likely is 0.
• If you do not know the Tab ID of the page you need to move, go to the page you want to move, Click Pages > Page Settings and read the number following the "tabid" in the URL.