Hi there!
I just looked at your post in the TOTB thread, and it looks like you just need the "img" tags around your URL. You have the correct address, but rather than just pasting it directly, you'll want to click on the box directly above where you type that looks like it is yellow with a little mountain in it. That will open a pop up box, and you can paste your URL in there. When you are finished it will look like this (without the spaces)
[IMG]
https://www.sweetshoppecommunity.com..._SSD_May_1.jpg [/IMG]
You can also check out
this tutorial for step by step instructions.