Apparently, this is all the lessons one might need a it concerns the forum. Though, for know, it just counts towards your need to know until your of appropriate rank to enable you post images on the forum. Notably, it all comes in codes, so you have to ensure the code is paste just right to avoid error or broken links.

Speaking of links, it's the one way of posting images on the forum. You can either upload it on a third party bitcointalk approved site like Imgur.com, copy the link and paste it here for interested forum users to reference or you could ask a user to help you paste the image and then you quote it unto your post. That's if its most necessary that you add you add image.