New images at form.php in guestbook

If u add new images to the form.php file u have multiple options to choose between.
I just have one problem:

The images are clickable, and the entered code apperers:

click =

but not at the guestbook or preview.... Only in this textbox. Why? are there anything wrong?

Did you also add them to the smilies collection in the Admin section. with the same code.

Like this: When I type the code this means