Please, when you ask a question, tell us exactly what you are trying to do, what you did, and what happened. You are asking us to guess.
Are you trying to include an image in a message? If so, there is a button to press, see the image below. Click on it in the reply to a message or when creating a message, and you will see that only jpeg and jpg files are accepted. No, don't click on my image, it's just an image.
Former user
wrote on 3/10/2014, 2:35 PM
i went to upload media and clicked on bmp added title description keywords categories and other, but the message says "Images may be only uploaded as *.jpeg".
Ok, now I understand...almost. You say that you clicked on "bmp". Where do you see this? When I click on Upload for images and photos, the only choices are jpeg and jpg. So, you have to convert your files if you want to upload them.