What I would do is find the Jesse's logo you want to use somewhere on this site (the decal in the store will work fine) and save the image to your desktop. Open the image you want to post on the site and open the Jesse's logo. Then just copy and paste the logo on your image. I don't know what software you are using but a lot of them will allow you to make the added logo transparent by certain percentages so you can adjust it to be more or less obvious. It is easy to do with Photoshop but I am not sure about some of the others.
That will give you something to experiment with until somebody that knows what they are talking about responds.
