Board Thread:Support Requests - Getting Started/@comment-24526311-20140215135700/@comment-1038387-20140215140646

You can upload an image at the wiki's "Special:Upload", or the "Add a photo" function that appears in the right column on pages. As for how to add it to a template, you'd best check the wiki in question. Look at how other pages have it, and then do the same for the image you add. However, make sure to read local images policy first.