^That would be the process. However, at the moment, poll creation has been disabled for users. Only moderators are able to create polls. This was done due to a number of issues we had with it. It should be implemented again at some point, but it's kind of taken a back seat to some more pressing issues.
If you REALLY need to put up a poll, I'd be happy to help you create it. We can change the author of the thread afterwards so that it will still be your thread. Mods will be able to do this as well, but you'll have to find one who has the time and is willing to go through the trouble