Ok.So in case you don't understand the post that the site made, that gets you to put pictures on, here's the codes.
Okay, 1: Go to the top of the page, and there will be like a little screw or something, click on that. Scroll down to the bottom, and there will be a section that says like "User Settings" or something. Expand it.
2: Find the picture you want, wether it's Photobucket, or Tinypic. It doesn't matter which site it is, as long as you use one of those two.
3. Once you have found your picture,there will be several codes. Copy the IMG URL, and go back to JBF. Once your in User Settings, then post it into the section.
4; Here's the tricky part. You have to remove the [IMG] in the beginning and the end.
5; Once you've removed the brackets, and you've pasted your code into the User Settings section, you have to do this: <img src=" (that's the beginning of the code.) The end of the code: "> You have to have the quotes or whatever there!
I hope this helped. I recommend reading the steps off, and doing this all in another tab. It's alot easier. (: Good luck!