Simply go to one of the 'headings' such as General Chat and click on 'Post New Thread', then insert the 'Title' of your new thread and create your post, once done, then scroll down to the bottom (do not click on 'submit' yet) and you'll see a section where it says: "Post a Poll" and check the box ( []yes, post a poll with this thread) and enable how many questions you desire for your own poll...also, you'll have an option indicating whether you want to make this poll 'private' or 'public'....a public poll is one where any member will see who voted on...private won't show what members voted for.
Lastly, setting the date for how long you wish to keep your poll active, allowing members to place their votes, after the date you've chosen, members will no longer be able to vote.
Good luck and if you need any help, just PM me or any of the other moderators.