Client's limitation aren't effective
My system : debian 5 (fresh and clean install whith the "official debian 5 install guide") yesterday evening subversion version.
Ispconfig seems to don't respect the "client limit"
As admin i create a client "test" which can have 3 clients, 3 website i log in as "test" and could create 40 clients which could have 200 clients each, 300 website each, etc