Try the tutorial on how to setup the admins_simple.ini found @
http://wiki.alliedmods.net/Adding_Ad...28SourceMod%29
It can be found in "sourcemod/config/admins_simple.ini", just need to double check everyone has the "z" flag
If your still stuck send me a pm & ill show you a few examples how it's setup on the gods server
Once thats done the admin menu can be accessed by typing ygmsm in chat
Hopefully that helps *fingers crossed* ;)