I swear I told you the truth. I uploaded my own avatars. Come to
www.knowledgearcana.com
and sign up for an account. Then you can edit your details and see that I have new images. You my still be trying to put them in the 'components' directory but they go in the 'images' directory.
In other words
*NOT*
/components/com_profiler/images/gallery
*YES*
/images/comprofiler/gallery