To add a photo to your new topic or reply, simply press the photo button in the editor pictured below.

If you want larger in line photos (like the one I posted above), you will need to copy the bbcode from your hosted image source, like photobucket, imageshack, flicker, ect.

Not sure which code to use? bbcode for images start with this [IMG], so look for the image tag at the beginning of the code.