Ok here goes. See the picture of the dual fans below my post? Here's what I do:
Right click on the picture and a list pops up. Depending on the browser that you use it will display different things. On Firefox you select "View image info" on Internet Explorer you select "properties"
After you click one of those options a new pop up shows the details of the picture and the url of it's location. I highlight the entire url of the picture, right click the highlighted area, then left click copy.
Finally when I am in a thread that I want to post it in, I type in [img ] right click and paste the picture info here [/img ] (you have to remove the space after the letter "g" I have to type it like that here so it shows the text.
That's it. If you need more specific details just let me know.