It seems polls are a bit confusing the first time around so I'll try my best to explain the process.

1. start a thread as you normally would give it a topic such as "which player should the Bears target first?" (ignore the quotation marks I just added them to demondstrate an example of words)
2. You'll notice as you start a thread there's tabs above the message area where you would normally type a message.
3. You click the tab that says poll on it. //
4. the tab opens up,  there's a checkbox that says "Include a Poll in this Post" beside it, you check this box, you'll see the poll expand.
5. To start the poll there is a area with "Question" beside it type your question into that box such as: "which player should the Bears target first?"
    
6. After creating the question you'll create answers, towards the bottom you'll see a box with "add answer" above it, you'll type the answers in this box 1 at a time hitting the "Add" button to the right of the box after every answer. You can add as much answers as you like.
    
7. when you're done adding the question and the answers you're ready to post, to post you just hit the "post" button as you would a normal post, keep in mind your poll must have a topic like a normal post does.

Your post should be up and running a tthis point, I did forget one thing, you'll notice a little box below the answers box that is an option to have the post expire after so many days. Just be sure to hit the "add" button after every answer and to give your post a topic.

Edit: you may have to put text in the compose tab topic and message area, according to staleyrulz that's how he finally got it to work.