Go to 9e9an.com photo gallery, it is in the upper menu or you can click on the following URL:
http://www.9e9an.com/index.php?action=galleryThen, select the category of the image you want to upload. Click on the category name and then click on "Add a picture" link. Specify a title, write a description about your image and upload your photo. Once uploaded, click on the photo to see it in its appropriate size, and then right click on it and go to properties. Copy the image URL which is hosted on 9e9an.com servers.
Just to the top of Message editor, there is a button for image insertion. click on that button, it will insert to you an img tag. Paste your uploaded image URL in the middle of the tag.
And you are done.