Okay, no, I'm afraid what they did in that Age was make a conditional is all. Not the same thing. I'm trying to achieve the same thing that you get when you click on Sharper's receipt for his fish tank, or the note showing the plate number, or back in the Barron's office with the notepad, or the map.
So here is the thing. I imported Barron's office. All those things (not the Journals) have a logic property string that says:
clickfile = xDialogToggle
And if you look, you'll see the textures for those things off to the side (like you do for the Journal Covers), and when you look at their logic properties, they are linked not to the mainRoom or Page0, but are each linked to a different page.
Now, I gave that a try, just to see what would happen. What happened was I could click on my note, but nothing happened (at least I'm not crashing back to the desktop like I was!!).
So I'm still looking into it, and I have some ideas.