You may upload images by uploading them to an external public (and free) image server somewhere, e.g.
http://www.tinypic.com/.
Once uploaded, you insert the url in between the square bracketed [ img ] [ /img ] tags.
Example of tinypic uploaded image:

I work as an employee with TARGIT A/S. Any statement made by me in this forum represents my own opinion and state of mind, and is not necessarily related to or representative of TARGIT A/S.
Ole Dyring