I'm sorry you've been getting frustrated with maneuvering the discussion boards. Here are a few Discussion board hints/tips for you:
When you are looking at the list of Discussion topics, if you click on the name of the topic, it takes you to the beginning of the discussion. If you click on the poster's name, it takes you to the very last post. If you click on the yellow balloon next to the title, it takes you to the last message you read.
The ones that state they are "games" are more fun discussions where people are contributing tidbits of information answers to questions (i.e. movie titles). Others are interesting discussion topics (i.e. prices of gas, Christmas ideas).
Hopefully that clears some stuff up, let me know if you have any questions or your can e-mail Meredith and Jolie for more help too.