Jerry,
Steve fixed the first one, but here's the easiest method for inserting a thumbnail into a thread. I usually open two windows, one for the thread I'm posting to and one to my Photo Gallery. Then, (1) Open the gallery and expand the photo you want to enter. (2) Scroll down below the picture and you'll see a box labeled "Linked Thumbnail". Click on the contents with the left button to highlight the box contents. Then, right-click to open a dialog box and scroll down to copy and click on it. (3) Return to the thread and place the mouse cursor where you want the photo and click to set the point. Right click, scroll down to paste and left click to insert the linked thumbnail URL. If you preview the post, the thumbnail will show, not the URL code. You can repeat this and add as many pictures as you want in the post.
Here's an example:
I'm going to update the FAQs threads in the next few days to help everyone on the site master this and other picture posting techniques.