While there are certainly other ways of posting pictures on a forum such as this, I think this is one of the most basic methods that most folks new to picture-posting will find fairly straight forward.
Okay, you have a picture on your computer that you'd like to post on the forum (this one or practically any other). Here's how you do it:
1. Set yourself up a free account on Photobucket by following the instructions for doing so on http://www.photobucket.com.
2. Okay.... You know where the pics are in your computer. Like in "My Pictures" or wherever.
3. With that in mind, go to: http://www.photobucket.com
4. With your account set up (my Photobucket username is "Timulator"), when the page opens, it will look like something like this:
5. Click on the green "Upload" button at the center up top. Your screen will then look like this:
6. Click on the big, green "Select photos and videos" button and a window will open from your computer with your pictures, looking something like this:
7. Note which file that window is showing, then get to the file where your picture is located.
8. Highlight the picture you wish to upload to Photobucket by clicking once on it. (If you wish to upload more than one, simply hold the "Ctrl" key as you click each one.) In the example below, I have highlighted the picture titled "2006fishingseason."
9. Click on the "Open" button in the lower right corner of the window. You will see a progress bar indicating the upload status. A video ad may or may not play (advertisements are why Photobucket is free!) During the upload, it will look something like this:
10. When your upload is complete, Photobucket will tell you so, like this:
11. Click the blue "Save and continue to my album" button and then your own personal Photobucket album will appear, showing thumbnails of all the pictures you have uploaded, looking something like this:
12. See the boat pic that I uploaded there in the upper left corner? Move the cursor over it and a drop-down menu will automatically appear, like this:
13. Next, move your cursor down to the "IMG code" line at the bottom and click once. Watch the box and you'll see a brief "Copied" appear and fade out. That code is now copied and ready to be pasted in your forum post.