This had been posted in another place in forum days ago, so I am re-posting.

After your update of tiny_mce, picture posting has stopped working.

The initial dialog box comes ok. But when trying to "browse",

Firefox displays a blank window.
IE6 gives a window with "HTTP 500 Internal Server Error" window, with "This page cannot be displayed" message.

I have not tested with other browsers.

Thanks, it is working now.