All I get when I try to add a photo is [img][img]. Am I missing something?
I believe you will first need to upload your images to a third party site like Photobucket. Photobucket will host the image for you and then give you the image code you need to post the image on a web forum and other places.
All the code does between the image tags [img] is link to the photo. So, it has to be somewhere on the internet already.
I don't know if this site has a user image gallery that you can upload to, or not. I put mine on a free website I created, and just link to them there.