WordPress MU

Hello all
please i have request
i want to activate members with my self ,
because there is alot of sex blogs are registerd and actived .
there is a solution for activate registered blogs through me ???
thanks alot

There's a plugin on http://wpmudevorg.wordpress.com I believe.

can also try this:
http://wpmututorials.com/hacks/how-to-moderate-signups/

Another way is to use the sitewide feed and just scroll down all recent posts, you quickly catch spammers but you wount want to be advertising your feed anywhere if you use this method