> I have no url insert to put in the box. Where do I get this from?

First you have to upload a picture to Psych Central. Under Photos at the top of a page, choose Upload Photos. Once you have uploaded a (small file size) picture, then you get the URL of it on Psych Central, and introduce that into the image link.

I have had trouble getting the right Psych Central URL for photos I upload. Once you get the full-sized picture, then you can get its URL (probably by right-clicking on it and choosing something like "Copy Image Location" or whatever your browser has as a similar option).