File Browser: storage in dynamic folders

I have been searching all over the forum and have not found an actual answer to this question. I had looked at the post http://sourceforge.net/forum/message.php?msg_id=3610292 and it was exactly what I was looking for but it didn't work.

Basically what I'm looking for, is some way to store pictures in different folders for each user. I would like the user to only see the pictures that they uploaded, and only be able to use those. I have session variables set up with a user id in them, I'm just not sure how to implement this dynamically into FCKeditor when the site is running. I am using PHP for this and any help would be appreciated. If this isn't possible with FCKeditor or would be easier in another WYSIWYG web based editor I'm open to suggestions.