There are two ways to get a question asked.
If you are reading someone's thread and you want to join in the discussion, scroll all the way to the bottom of the page and you'll see a blank window that says "Reply" in the upper left corner above it. Just click inside the blank space and start typing. When you're done, scroll below the window and click "SUBMIT".
If you want to post photos, find the tool bar with the little icons just above the Reply window and click on the one that looks like a mountain peak with a moon. In fact, click on all the icons to see what you have available to help you make interesting posts. It's fun.
To begin a new thread, click on "Start a new Thread" near the top of the page.