Basically I want to let members post comments when they are logged in. So I googled a bit to see how to let uers to register/login, and I found this link: http://codex.wordpress.org/Function_Reference/wp_register
It says that I can do so by checking "anyone can register" in "Membership". However, I don't have this option Administration > Settings > General.
I am using version 3.0 and multi-site (hosting several sites together)
Can anyone give me some help?
Thanks in advance.