I just answered someone else, so I have it all ready to go for you.
1. You click start a hub up at the top of your screen
2. Create a title, just go with the address that it picks based on the title
3. category that you want to put your article in
4. Just keep the default layout, you can always change it up, then pick the tags (the main topics, like publishing a hub)
5. Click continue, then you can type in the text box, and move your photo's in there, you just have to play around a little and you will get the hang of it.
You can email me if you have any questions