I'm trying to figure it out too. Each time I add a photo it does not appear. Let you know if I get it.
Currently you can add photos to your question by clicking on "Ask a Question" filling in your details, and then look for "Attach an Image to Your Question." Click "Choose File" and then you can upload from your computer. Then hit "Ask Question" and you should see the photo once you publish your question.
I added mine finally by clicking on my name at the top. Them my account appears. I clicked on my account and u will see the link to add the profile photo. Hope that helps.