#Just so you know …
Never mind. The bug described below should be fixed now. The links should “just work”.
###There is currently a “bug” which occurs when clicking on the link Discourse provides to a “linked topic”.
If/when you get the error message "The page you requested doesn't exist or is private", refreshing that page with the error message should take you to the linked topic.
There is a bit more of a description of the bug, including a screenshot of the error message, in this reply to Brian’s “Creating and Visiting Linked Topics” linked reply discussion topic which he just created.