[Zope] [HELP] FTP - Limit user reached

Hello, I use Nescape Composer in order to edit the Web content of my Zope sites using FTP. It's work great, but i have a problem : When i edit a HTML page containing few images, Composer doesn't manage to load them : in fact it does one FTP request for each image ==> I have the message : "User limit reached". Can anyone help me ? Thanks in advance. Frederic. PS : Excuse my english.