I've been trying to learn this all day. If it works, here's my garden to date.
Back to the drawing board!
If you are using photo bucket:
1. left click the HTML window below the pic. The window will turn blue and the word copied will pop on for a second.
2.right click on the blue area. a window will open and you need to click on the word copy.
3. go to the forum where you want to post.
4. Right click again and the window will open then click on past.
a bunch of writing will show up. that looks some what like this:
this will continue for about 4 lines and end with the words Photobucket">
When you hit preview your picture will appear.
I have found it easier to have two browsers open so I can go back and forth between photbucket and where I am posting.
I hope I have helped you.
Or even easier.. Download, install and use Picasa. It's a free picture management software. Also sign up for a Google account. Once Picasa finds all your pictures then hold the control key and click on the pictures you want. Now click on the 'web album' button at the bottom and it will ask your Google credentials. Once you put them in, the selected photos upload to http://picasaweb.google.com/YourUserID
You can browse the pictures you uploaded and to the right of each picture is a link that says 'Link to this Photo'. Click it and then select the size of the thumbnail (800X is a nice fit for this website). Right above the thumbnail dropdown is 'HTML to embed in website'. Put your cursor in there and cut . Paste the link right into this forum with no alteration necessary.
I know this sounds like a lot of work, but it isn't once you are setup. It will make it super easy going forward to show off your pictures on this forum without having to do any HTML.
Here is a link that might be useful: Picasa Download