Hmmm... this seems almost bass-ackward, frankly. So... if you remove the default Page, Post and Link admin screens, you're left with the custom more-fields ones (currently for me, Products and Contact)... but none of the actual pages created show up when I click the Edit links in either... though I can opt to click the "all" or other filter links and see them....
And oddly, unlike the default Page or Post admin menu tools, when you click on the "Product" heading, it goes to Add New rather than Edit (the list)... it all seems anti-default WP behavior.
Here's what I expect to see:
1) same interface for creating boxes, fields and types (stop using the word post for this, though, it only adds to confusion).
2) Don't create new "types" in the left column where page and posts already are and don't offer to turn those off.
3) Instead, IN the interface for each of those, offer any "type" that has been created IN A MENU ON THE LEFT< like in Attributes (eg. template, parent, TYPE) and when that is chosen, THEN OFFER the boxes selected to display for that TYPE.
Stop using Screen Options to control this, it's lame.
My two, now until that happens, I'll go find a plugin that works as expected. I am generally happy with being able to create groups and display the fields but the point was also to make the CMS end of things EASIER for someone who doesn't understand html or wordpress all that well.
I think they'd be more confused than I with the current setup, sorry.