Trying to see if I solved the problem.
OK, here’s the deal…….
When you want to post images, including smileys, you have to click on Input format and make sure Full HTML is the selected option. Then your smileys will show up in your post.
I’ve also changed the board settings so that Full HTML is the default setting for all users. You should, however, click on it to ensure it’s set appropriately for a few posts to make sure the change is shown.