The digest/newsletter is a computer generated random list of just a few of the topics on the board. That's right, computer generated.
It is NOT the board.
I really don't understand the appeal.
It sounds relatively useless, and seems to cause an inordinate amount of confusion.
This link is the home page of the board. From here, you can navigate to all posts/threads.
http://www.quiltingboard.com/
In addition to each forum (Main/Picture/etc.), here's an description of how the Recent/Watched/Unread options work:
http://www.quiltingboard.com/t-30553-1.htm#628055 and the following posts.
Now you won't miss a thing!