hey Guys i want to create Admin BB Code anyone help me
What? Please explain what you want further.
If a MyCode is what you want though, you can create one by going to Admin CP > Configuration > MyCode > Add New MyCode. There are lots of MyCodes available in the forum:
http://community.mybb.com/forum-117.html
the mycodes which are used by admins that indicates some message from admin
i have checked it but not able to resolve it
Did you install the plugin and added the new MyCode correctly?
If you PM me an admin account, I could do it for you.