Photos can be displayed with two different codes. They are:
[img]http://www.wdwinfo.com/sites/.../something.jpg[/img]
or
<img src="http://www.wdwinfo.com/sites/.../something.jpg">
Replace the part in red with the address of the image you want to display. To get that address, point your mouse over the photo and click the right button. A drop down menu should appear and at the bottom select "Properties". To the right of "Address" you will see the image address that will look something like the one in red above. Use that address in either of the codes I've provided above.
Give that a shot and post back here if you have other trouble.