Ok so you are just starting out in the forum and you would like to create a topic.
Select the section you would like to post in i.e. Most Haunted, click it open and then your see a green button "POST NEW" click that to start a new topic and then just enter the topic name in the top box and your comment or post in the larger box.
After you have filled out your post just click "SEND" under the box.
Your topic is now created.