OK, it's pretty easy. When you first sign on, it will take you to thumbnails of each pictures. There are three options under each picture: 1. URL LINK- This is if you want to just post a link to your picture. 2. HTML TAG- That doesn't work on this forum, so don't worry about it. 3. IMG CODE- That is the code that works on this site.
You can either highlight the IMG Code, copy it and come back over here and paste, or you can click on it and Photobucket will copy it for you. You will know that is was copied for you if a little (and I mean little!) yellow box pops up and says "Copied".
Highlighting it will probably work better for you until you get the hang of it.
Paste the copied code on here. Instead of clicking "Submit", click on "Preview" to make sure it turned up, then click "Submit". Even if you can't figure it out, just paste the link and I can fix it so the picture turns up.