I have a funny question, but, where do i have to insert the admin password, so i will get admin rights ors in server .

Just join the server with the admin pass and you'll have admin rights

Quote from migf1 :

Just join the server with the admin pass and you'll have admin rights

Doesn't work
And im sure i have the right pass, cause im the owner of the serv

In that case you need to have also provided the admin pass in the corresponding field on the screen shown just before you create the server (or in the server's cfg file in case you're using a dedi one).

just typte the admin pw in the normal pw field

Make sure you've taken out a / from before the admin line:

/admin=pass

instead of

//admin=pass