Yann192 , as @bgdomainer said, just use...

if ($this->user->info->is_network_admin) { echo " I'm admin "; } else { echo " I'm not "; }

And how can I do if I want to change the color of a members. A red, another blue, green .. ?

Cool thanks!

Or just use the .htaccces file (if you prefer to not tocuh the code), just add

order allow,deny
deny from 212.22.40.98
deny from 57.14.10.1
deny from more ips, one each line
allow from all

but what if the user is just new? how could you nuke a user who just registered?

quick solution you can added registration date in the where filter

i don't know xD

+1 perhaps only showing a few "online" users in the right... w/lights and then in the "members list have a button for "online member" and on their profile have an online light? Also, maybe, the feed list could have a light under the pic...I like the idea +1
myspace can do it so can ST