I had some problems while working with image assist module with
Drupal. When selecting
[img_assist] tag instead of html in the
insert menu, I could see the tags in the post but not the image
What you need to do, is to go to:
And select to configure filtered html, then look for the option inline images and select it, that is all, now when posting something using img_assist module, select filtered html, if you want to use full html be sure to also select the option inline images in it.
Hope this may help someone.