When you are about to start a new topic and you clikc on the 'New Topic' button look to the side of that and there is another button called 'New Poll', click on that and then scroll down a bit, you'll see like a square empty box, you have to enter each answer to the poll on a different line. Actually, I'll just post pictures of how to do it:
Right, so next to the 'New Topic' button now you'll see the 'New Poll' button circled in red, click on that when you want to make a poll:
Once you have clicked on it and the page has loaded scroll down a bit and you will see this:
In the medium sized box on the page you have to type the answers for your poll on a separate line, like this:
And once you have entered the subject of your poll at the top of the page you just have to click 'Post New Poll', then it's done.